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elements buzzprases

QuestionAnswer
Schlesinger’s codiscovery of two reagents that provide this element’s anion deprecated the Bouveault–Blanc reaction hydrogen
This element is added to benzyl groups to deprotect alcohols and amines hydrogen
This is the lightest element whose bonds with carbon can donate electron density to adjacent antibonding orbitals hydrogen
The nucleophilic attack of a base displaces this element between carbonyls (“carbon-EELS”) to produce the disproportionated (“dis-PROPORTION-ate-d”) products of the (*) Cannizzaro reaction. hydrogen
The BINAP/ruthenium catalyst that let Noyori split half of the 2001 Nobel can add this element asymmetrically and is based on Wilkinson’s catalyst hydrogen
Moving this element classically interconverts pairs of tautomers. hydrogen
This compound is a byproduct in reactions in the CDC synthetic paradigm pioneered by Chao-Jun Li et al. hydrogen
The discovery that a sterically hindered phosphine borate salt activates this compound spurred the development of frustrated Lewis pair catalysts. hydrogen
This compound is liberated in reversible “acceptorless” couplings catalyzed by Milstein-type pincer complexes, whose interactions with this compound exemplify metal-ligand cooperativity. hydrogen
Donor solvents like (*) tetralin are used as sources of this compound for coal liquefaction. hydrogen
Benzyl·toluene systems have emerged as candidates for liquid organic carriers of this compound hydrogen
the asymmetric addition of this compound is catalyzed by complexes with chiral BINAP (“BYE-nap”) ligands developed by Ryōji Noyori et al hydrogen
Burning this compound only releases water hydrogen
This is the only element for which Schrodinger’s equation can be solved exactly hydrogen
Isotopes of this element include tritium and deuterium hydrogen
Its diatomic form is released when sodium reacts with water. hydrogen
It is the only nonmetal in Period 1 of the periodic table. hydrogen
Bonds involving this element commonly form with nitrogen, oxygen, or fluorine due to large differences in electronegativity and are the reason for water’s surface tension hydrogen
This element is the most abundant in the universe and was used to lift the (*) Hindenburg zeppelin. hydrogen
This gas was isolated by Henry Cavendish, who thought it was a form of a fire-like element called phlogiston hydrogen
When a glowing splint is exposed to this gas, it makes a distinctive “squeaky pop” sound hydrogen
Isotopes of this element include (*) tritium and deuterium, and two atoms of this element bond with two atoms of oxygen to form its namesake peroxide hydrogen
Bohr’s model is only consistent for an atom of this element, and bonds that only occur with fluorine, oxygen, and nitrogen are named after this element hydrogen
In physics, this is the only element with a known solution to the Schrodinger (“SHRO-din-jer”) equation hydrogen
In science history, this element forms a flammable gas that caused the Hindenburg explosion hydrogen
n chemistry, Arrhenius (“ar-REN-ee-us”) acids release an ion of this element into water hydrogen
In astronomy, the proton-proton chain converts two of this element into helium hydrogen
This element's series of spectral lines named for Lyman are all ultraviolet, and all its visible spectral lines are within the Balmer series. hydrogen
According to the Bronsted-Lowry theory, its cation is donated by acids hydrogen
In addition to having isotopes like tritium and deuterium, this element’s extremely strong dipole-dipole interactions, its namesake “bonds”, explain the high boiling point of water. hydrogen
This molecule can be activated by frustrated Lewis pairs. hydrogen
Lindlar’s catalyst may be used to react this molecule with an alkyne hydrogen
This molecule is produced along with carbon dioxide in the water-gas shift reaction hydrogen
By definition, this molecule is assigned a reduction potential of (*) zero. hydrogen
This element's spin-flip transitions cause its namesake 21 cm line hydrogen
This element's emission spectrum includes the Lyman series. hydrogen
This is the only neutral element for which Schrodinger’s equation can be solved perfectly. Gases of this element and nitrogen react with an iron catalyst in the (*) Haber-Bosch process hydrogen
This element is used with neon in the gain medium of a common type of laser used in barcode scanners helium
The nucleus of the most common isotope of this element is identical to an alpha particle, and this gas can be inhaled to make the pitch of one’s voice (*) higher than normal due to its low density helium
This gas is often put into party balloons to make them lighter than air helium
The first terrestrial finding of this element was in the mineral cleveite, a uranium oxide helium
The Geiger-Nuttall law describes the rate at which nuclei of this element are emitted from a larger nucleus helium
This element was discovered by Norman Lockyer and Pierre Janssen while observing a yellow spectral line during a (*) solar eclipse. helium
The nucleus of an atom of this element is called an alpha particle helium
Removing an electron from an atom of this element in the ground state makes it a hydrogen-like atom helium
Because of its zero-point energy, this element has no melting point. helium
This element and nitrogen are the most common carrier solvents in semiconductor manufacturing and in gas chromatography helium
It has the highest first ionization energy helium
The liquid form of this element exhibits (*) superfluidity. helium
This element was discovered as a yellow spectral line during a solar eclipse. In the gold foil experiment, Rutherford fired nuclei of this element, or alpha particles, at the foil helium
An alpha particle is a nucleus of this element, which has a filled 1s (ONE S) orbital but no p orbitals at ground state helium
After the Hindenburg disaster, this gas replaced hydrogen in zeppelins and blimps helium
Because the speed of sound in this gas is much faster than that in air, inhaling it causes a high-pitched voice helium
Instead of Argon, this element is used as a shielding gas in gas tungsten arc welding for substances with high heat conductivity. helium
One spectral series associated with this element is the Pickering series, but its primary yellow spectral lines were first observed by Jules Janssen helium
Runaway fusion of this element in the core of low mass stars results in a namesake "flash." helium
One of this element's isotopes constitutes a Rollin film, which are known to "creep" along surfaces as a superfluid helium
An alpha particle is identical to a nucleus of this atom helium
The presence of this element's degenerate type leads to its namesake flash helium
This element with more than one valence electron was produced during the nucleosynthesis after the Big Bang helium
The CNO cycle is used to produce this element, which is consumed in red giants during the triple-alpha process helium
It was first discovered as a (*) yellow spectral line during a solar eclipse in 1868 helium
This element has a 25% abundance in the universe, and its nucleus is equivalent to an alpha particle helium
Within most stars, it is created by the nuclear fusion of hydrogen atoms, which it has double the protons of helium
This element was first observed by Jules Janssen during the solar eclipse of 1868. helium
It can be used to detect small leaks in high pressure containers, but its most common application involves cooling superconducting magnets in MRI scanners helium
As temperature approaches absolute zero, this substance forms a Rollin film, enabling it to creep along surfaces as a (*) superfluid helium
It’s also mixed with nitrogen and oxygen as a breathing gas for deep-sea divers, and because sound propagates faster in gases with low molecular weights, inhaling this gas can increase the pitch of one’s voice helium
The sponge variety of this material is produced from a direct reduction by a reducing gas or elemental carbon and may be produced in a bloomery. iron
A mixture of this element’s oxide and aluminum is a common form of thermite iron
The +2 and +3 oxidation states of this metal are mixed in an ore which may occur as (*) lodestone iron
impurities in this element are burned off by blowing air across its molten form in the Bessemer process iron
his metal’s cast type is commonly used in cooking pans, and has a higher carbon content than steel. iron
Catalysts of this element are routinely used in the Fischer-Tropsch process to convert carbon monoxide to hydrocarbons and in the Haber-Bosch process to produce ammonia iron
t isn’t aluminium, but this element’s chloride can perform a Friedel-Crafts Alkylation. iron
In the pigment (*) Prussian Blue, six cyano-groups orient themselves around an atom of this element, and in the human body, it can be found in myoglobin, cytochrome P450, and hemoglobin iron
Along with nickel, most of the Earth’s inner core is formed by, for 10 points, what element with atomic number 26 and symbol Fe iron
The first person to explain the practical uses of this element was French entomologist René Antoine Ferchault de Réaumur iron
The main ore of this element is the grayish-black hematite, which produces a red streak iron
The Earth’s (*) inner core consists mainly of this element and nickel iron
This element reacts with oxygen to form rust. iron
At high pressures, this element crystallizes to form a hexagonal close-packed structure referred to as its epsilon allotrope. iron
Martensite is formed by rapidly cooling the gamma phase of this element, austenite iron
This element is most commonly extracted from its oxides, (*) magnetite and hematite ores iron
After going through a blast furnace, several impurities can be found in the “pig” type of this metal iron
The high luster and yellow hue of this element’s sulfide give it its nickname fool’s gold iron
This element oxidizes to its plus-3 state form rust iron
An allotrope of this element, Austenite, has vanadium or molybdenum stuck in its interstitial spaces to prevent corrosion in the new substance iron
Mossbauer spectroscopy is often used on this substance to assess bonding properties iron
This substance is used to produce ammonia or fuel in the (*) Haber-Bosch process iron
This element, when treated with acids made from halogens, produces ferrous and ferric halides iron
This metal has a “wrought” and “pig” type, and when it oxidizes, it forms rust. iron
Ions of this element complex with cyanide to form Prussian blue iron
This element’s sulfide is a cubic crystal often mistaken for gold iron
The Bessemer process alloys this element with carbon, and its oxide is found in the magnetic mineral (*) magnetite iron
This element is found in pyrite and its ions are called either ferric or ferrous iron
Collman’s reagent consists of this element bonded to four carbonyl groups, and this element catalyzes the Bechamp reduction and Fischer-Tropsch process iron
A blue pigment used as an antidote for heavy metal poisoning, contains seven ions of this element along with eighteen ions of cyanide iron
This element catalyzes the (*) Haber-Bosch process to produce ammonia, and it undergoes the Bessemer process to form an alloy with carbon. iron
The gamma allotrope of this element is called austenite. iron
This element binds to siderophores, such as enterobactin, the strongest known chelating agent. iron
Though not aluminum or zinc, this metal can be used as a catalyst to electrophilically halogenated aromatic rings iron
porphyrin (“POR-fear-in”) ring surrounds this element in hemoglobin iron
This metal’s sulfide, (*) pyrite, is also known as fool’s gold iron
It exists alongside oxygen in such minerals as hematite and magnetite iron
"Picket-fence" models describe this element’s interactions with a cyclic molecule made of four pyrroles iron
“Centers” made of this element and sulfur carry one electron iron
Cytochromes change color when its charge is reduced. iron
Green and yellow biliverdin and bilirubin molecules are made when a prosthetic group with one atom of this element is degraded iron
Golden rice reduces deficiencies in Vitamin A and (*) this metal iron
It is part of a catalyst in biological Fenton reactions iron
The dye Prussian blue contains a complex of cyanide surrounding this element iron
The first metallocene consisted of two cyclopentadienyl rings sandwiching an atom of this metal in between iron
The most common isotope of this element are produced by nickel-60 undergoing alpha decay iron
This metal is found with oxygen in (*) hematite and with sulfur in pyrite, or fool’s gold iron
An atom of this element is coordinated at the center of hemoglobin proteins in red blood cells iron
This element sometimes exists in a gamma phase allotrope known as austenite iron
The pigment Prussian blue ideally contains seven ions of this element complexed with eighteen cyanide ions iron
The mineral magnetite is an oxide of this element, and impure forms of this element undergo the Bessemer process to form an alloy of this metal and carbon iron
The mineral siderite is this element’s carbonate, and a main source of this metal for its large-scale production comes from hematite iron
In humans, atoms of this element complex with the proteins myoglobin and hemoglobin iron
Most red giants will eventually fuse into a core of this element before going supernova iron
When it is neutrally charged, it has an unfilled d shell, and often has a charge of +2 or +3 iron
A lack of this element in blood causes anemia iron
One isotope of this metal has an extremely high nuclear binding energy and is thus the heaviest element formed in stellar nuclear fusion processes. iron
In the body, it is found at the center of porphyrin molecules iron
When bound to cyanide this element forms the pigment Prussian Blue and adding thiocyanate to a solution is one method of detecting this element. iron
Electrolysis with an impure anode and pure cathode of this metal is used to purify it in the Wohlwill process, which achieves higher purity than the Miller process gold
Those clusters can also be synthesized by treating citrate with an acid of this metal in the Turkevich method gold
This element’s color arises from its 6s orbital (*) relativistically contracting gold
This most ductile metal and a lighter one can be dissolved by a 3:1 mixture of hydrochloric and nitric acid known as aqua regia. gold
name this noble metal located between platinum and mercury on the periodic table. gold
Campanile probes for near-field scanning optical microscopy are usually covered in a layer of this element gold
MHA and p-MBA ligands are often used to stabilize cluster compounds of this element gold
Rod-shaped structures composed of this element are typically stabilized with a bilayer of the surfactant (*) CTAB gold
Though a variety of elements can be used today, this element is the one that was traditionally used in sputter coating of samples for electron microscopy gold
Surface plasmon resonance produces the red-to-pink color of monodisperse colloidal solutions of this element. gold
relativistic effects in the 5d orbital produce the characteristic color of what noble metal? gold
This metal is transferred from water to toluene by TOAB, and then this metal is reduced by sodium borohydride in one method of synthesizing clusters of it gold
Interactions between atoms of this metal form intermolecular bonds with energies of 21 to 42 kilojoules (“kilo-jools”) per mole. gold
An acid containing this metal and four chlorine atoms is treated with sodium citrate in the Turkevich method gold
The best studied (*) self-assembled monolayers are created by placing alkanethiols (“alkane-thiols”) on this metal. gold
For small particle sizes, suspensions of this metal’s nanoparticles are red gold
Relativistic effects of electrons in this metal’s 5d and 6s (“six-S”) orbitals give this metal its color gold
A thin layer of this element is used to coat astronauts’ helmet visors to protect them from solar radiation gold
More than any other element, this one can be hammered into a flat shape without breaking, meaning that it is the most malleable [MAL-ee-uh-bull] metal gold
As with platinum, it is difficult to dissolve this element, but it can be dissolved with a mixture of nitric acid and hydrochloric [“hide”-roh-KLOR-ik] acid called aqua regia gold
Pyrite [“PIE-rite”] is nicknamed for its resemblance to this element, which “fools” might confuse it with gold
A colloid of this element can be formed in the Turkevich (TUR-kuh-vitch) method using sodium citrate, which can then be used to label antigens in electron microscopy gold
Like platinum, this element dissolves in a mix of hydrochloric acid and nitric acid gold
Alpha particles were (*) shot at a thin sheet of this metal to prove that atoms have a positively charged nucleus in the Rutherford experiment gold
Aqua regia (AH-kwah REJ-ee-uh) dissolves this metal, for which pyrite is easily confused. gold
The Faraday-Tyndall effect was first observed in a colloid of this element. gold
The MacArthur-Forrest process uses cyanide to mine this element since it does not dissolve in most acids, although (*) nitric and hydrochloric acids combine to form aqua regia, which is named for its ability to dissolve this element gold
This element’s extreme malleability allowed Rutherford to use it in an experiment as a thin foil gold
A complex whose center is this element in its unusual +2 oxidation state must be stabilized by antimony (V) [five] fluoride counter·ions and contains four xenon ligands gold
This only metal to form a stable monatomic anion, which it forms in a compound with cesium, has the highest electron affinity among metals. gold
This metal displays the strongest known metallo·philicity, which can be exploited to produce nanoscale aggregates like monolayers via (*) self-assembly. gold
Reduction with sodium citrate can be used to produce intensely red colloids of this metal’s nanoparticles gold
Like platinum, this metal doesn’t react with nitric or hydrochloric acid but is dissolved by their mixture, aqua regia gold
Expansion of d orbitals causes complexes with this element to exhibit aurophilicity gold
This element may be extracted from its ore by converting it into a coordination complex with cyanide gold
A colloidal suspension of this element appears either red or purple depending on the size of its nanoparticles gold
This element is the most (*) malleable metal. gold
Like platinum, this transition metal does not react with nitric acid, but forms a precipitate when it is dissolved in aqua regia. gold
Microcrystals of salts of this metal combine with photoelectrons from glass exposed to UV light to produce its elemental form in a technology used for photochromic lenses silver
Dendrites and nanoparticles of this metal are produced by reducing metallic copper with this metal’s nitrate silver
Titrating with a salt of this metal in Mohr’s method can be used to measure the concentration of chloride ions in solution, as this metal’s chloride is highly insoluble in water. silver
Salts of this metal are held in a clear gelatin matrix, allowing light-excited electrons to form sensitivity specs of this metal by reducing one of its halide salts in a common black-and-white printmaking method silver
The Patio process uses mercury amalgams to extract this element, which is the most conductive metal silver
A compound of this element and iodine is used to seed clouds and develop photographs silver
This precious metal was associated with the moon in alchemy. silver
Antimicrobial nanoparticles of this element turn bacteria into "zombies" that kill other bacteria silver
. An electrode containing this element's chloride has largely replaced the calomel electrode in pH meters. silver
This element's nitrate precipitates out halides as cream-colored solids and stains skin and nervous tissue in Golgi's black reaction. silver
This element is the lighter constituent of (*) electrum silver
This element has the highest thermal and electrical conductivity and is generally in a +1 oxidation state, with a 5s1 4d10 electron configuration, similar to copper, which lies right above it on the periodic table silver
When alloyed with copper in jewelry this element is called sterling. silver
The iodide of this element is used in cloud seeding, and its halide salts are photosensitive, leading to their use in photographic media. silver
Tollens' reagent is a solution of a nitrate of this element and ammonia, and the nitrate of this metal was often used to prevent conjunctivitis in newborns silver
The body exhibits argyria after overexposure to this element whose nanoparticles are put in (*) socks to kill bacteria. silver
Useful in photography, a process of reducing a nitrate of it produced 19th century mirrors silver
The beam used in the Stern-Gerlach experiment was composed of atoms of this element, which is located above gold on the periodic table. silver
This metal’s chloride is used to make photographic paper and cure mercury poisoning. silver
The Hofmann and Cope eliminations occur in the presence of this lustrous metal silver
Its ores include pyrargyrite and argentite and it precipitates onto glassware in the presence of an aldehyde in Tollen’s test. silver
Name this highly reflective element, which has the highest conductivity of all metals. silver
A zinc anode paired with a cathode of this element can be found in this element’s oxide battery, which has a very high energy density. silver
Artificial production of rain often involves cloud seeding with this element’s iodide. silver
The iodide of this element is used in cloud seeding, and its halide salts are photosensitive, leading to their use in photographic media silver
Faraday’s constant was determined in an experiment involving this metal, used to test for aldehydes in Tollens’ reagent. silver
This element is reacted with calcium carbide in the Frank-Caro process. Along with boron, this element forms an extremely hard compound with a lattice structure isoelectronic to diamond nitrogen
A compound consisting of sodium and three atoms of this element is commonly used in airbags. nitrogen
An oxoacid of this element is generated using a platinum-rhodium catalyst in the (*) Ostwald process. nitrogen
This element has an unusually low electron affinity due to its half-filled 2p subshell. nitrogen
This element reacts with hydrogen in the Haber process to produce ammonia nitrogen
Along with sulfur, oxides of this element in the air combine with water to form acid rain. nitrogen
A fixation process named for this element which occurs in plants produces ammonia, which contains one atom of this element bonded to 3 hydrogen atoms nitrogen
This is the most common element in the Earth's (*) atmosphere, which is composed of 78% of this element. nitrogen
This element is reacted with calcium carbide in the Frank-Caro process to make calcium cyana-mide nitrogen
A molecule of this element has a lone pair in amines. nitrogen
This element can be “fixed”to hydrogen to make ammonia. nitrogen
A functional group containing hydrogen and this element can be added to an alkyl halide using potassium phthalimide (THAL-imide) in the Gabriel synthesis. nitrogen
Two atoms of this element and an R group comprise a diazonium cation nitrogen
A compound containing two atoms of this element is often used with an iridium catalyst as rocket fuel; that compound is (*) hydrazine nitrogen
The inert diatomic gas formed by this element has a triple bond between two atoms of this element nitrogen
The Haber process synthesizes a compound containing one atom of this element and three atoms of hydrogen nitrogen
Diving below ten meters can lead to this element’s namesake narcosis nitrogen
A drug containing three atoms of this element is commonly used to treat chest pains. nitrogen
The urea cycle excretes this element’s waste, and Azotobacter soil microbes (*) fix this element in its namesake cycle. nitrogen
Nucleotide bases like adenine and thymine include several atoms of, for 10 points, what gaseous element with 7 protons in its nucleus and chemical symbol N? nitrogen
The Bamford-Stevens reaction produces alkenes by removing a functional group with two atoms of this element from tosyl•hydrazone molecules nitrogen
In its molecular form, this element forms the strongest bond of any diatomic molecule, whose high dissociation energy makes compounds of this element useful as explosives and rocket propellants nitrogen
Compounds containing this element are reacted with sulfuric acid and titrated to detect it via the Kjeldahl method nitrogen
Porphyrin rings contain four atoms of this element, and some airbags utilize a reaction involving sodium azide to produce its diatomic gas nitrogen
A reaction involving this element and hydrogen involves passing the reactants over four beds of an iron catalyst nitrogen
That reaction is the Haber-Bosch process, and combining glycerin and this element forms a potent explosive. nitrogen
. This first element of the pnictogen family has a boiling point of 77 Kelvin, making it a useful cryogen nitrogen
Two atoms of this element are reacted with six atoms of hydrogen in the (*) Haber process to produce ammonia nitrogen
The amount of this element in a substance can be determined with the Dumas and Kjeldahl methods nitrogen
A process that combines this element with hydrogen typically uses a porous iron catalyst prepared by reducing magnetite nitrogen
Four atoms of this element are bonded to the iron in a heme group, and it is bonded with two hydrogen atoms in an (*) amine group nitrogen
Legumes engage in a symbiotic relationship with Rhyzobium bacteria because of their ability to “fix” this element into a more usable form nitrogen
Legumes engage in a symbiotic relationship with Rhyzobium bacteria because of their ability to “fix” this element into a more usable form nitrogen
This is the largest homonuclear diatomic molecule with a pi-u molecular orbital at a lower energy than a sigma-g orbital nitrogen
Along with water, carbon dioxide, and sulfur dioxide, it has a zero enthalpy of combustion nitrogen
Old airbags produced this compound from sodium azide nitrogen
This metal is typically extracted through evaporating large underground pools of brines containing this metal, yielding its carbonate or chloride lithium
The complexity and hazards of extracting this metal from a cathode in one device has restricted the output of this metal from recycling lithium
About half of the global reserves of this metal is underneath (*) Bolivia lithium
Concerns have arisen over an eventual shortage of this metal due to the rising prevalence of smart devices and electric vehicles. lithium
The hydroxide of this element is used to remove carbon dioxide from life support systems during anesthesia lithium
This element is found with copper in a Gilman reagent lithium
This element is placed at the top of the activity series for single-displacement reactions lithium
It’s not strontium, but the flame test of this element produces a bright (*) red color lithium
Salts of this element are often used to treat bipolar disorder, and the 2019 Nobel Prize in Chemistry was awarded for the advancements made in this element’s namesake “ion” batteries lithium
Its transmutation to tritium was the first man-made form of nuclear fusion lithium
Chile has become the world’s top producer of this element by developing its rich salt-flats in the Atacama Desert, though Bolivia has the world’s largest deposit lithium
Salts of this element were used to treat gout in the 19th century, and today its salts are used as mood stabilizers lithium
It has the highest specific heat capacity of all solids and is the least reactive of the alkalis lithium
Its transmutation to tritium was the first man-made form of nuclear fusion. lithium
Hard-soft acid base theory explains why this element’s chloride and iodide are soluble in water, but its fluoride is not. lithium
In most fusion reactor designs, this element is bombarded with neutrons to produce tritium lithium
This element, (*) aluminum, and hydrogen make up a common reducing agent lithium
this other metal has hard ions that form simple oxides when combusted. Ions of this alkali [AL-kuh-lie] metal are found in cell phone batteries. lithium
Created by: JASPERGRUHL
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