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Wiles--Modules 16-18
Wiles--Modules 16, 17, & 18 Review--Periodic Table
| Question | Answer |
|---|---|
| What does the Octet Rule state? | With the exception of the first shell which is stable or full with 2 valence electrons, all other shells are stable or full with 8 valence electrons. |
| If an atom has an oxidation # of +3, what does it do to chemically combine? | lose its 3 valence electrons |
| What gas was produced when sodium and water react? | hydrogen gas |
| Define malleability | Ability of a metal to be hammered or pounded into a thin sheet. |
| In the modern periodic table, elements are arranged in order of ______ _______ _______. | increasing atomic numbers |
| In forming binary ionic compounds, nonmetals tend to ___ valence electrons. | gain |
| How many elements were identified when Mendeleev was making cards and trying to arrange them into a periodic table? | 63 |
| Mendeleev arranged elements in the first periodic table by _____ _____ _____. | increasing atomic masses |
| What words means repeating at regular intervals? | periodic |
| How old was Henry Moseley when he died? | 27 |
| What nationality was the scientist Henry Moseley? | British |
| Are rusting and tarnishing chemical or physical properties of metals? | chemical |
| What word means shininess of a metal? | luster |
| What word means the ability of a metal to be drawn into a thin wire? | ductile |
| What is the superscript of elements in the halogen family? | -1 |
| What is the charge on an ion of sulfur? | -2 |
| What is the oxidation number of lithium? | +1 |
| Give 4 physical properties of metals. | Ductile, malleable, high melting point, high density, good conductors of heat and electricity, high luster, solid at room temperature |
| Who published the first periodic table? | Dimitri Mendeleev |
| List 4 of the 5 properties that Menveleev used to organize elements? (He listed these on his cards) | Density, color, atomic mass, melting point, and valence |
| Isotopes of the same element have different numbers of ___. | neutrons |
| What happens to atomic size as you move down a family? | increases or gets bigger |
| What are electrons found in the outermost energy level of an atom referred to as? | valence electrons |
| What are the two rows that stand alone at the bottom of the periodic table collectively called? | inner transition metals |
| An atom has 6 electrons, 6 protons, and 8 neutrons. What is its atomic number? | 6 |
| How many valence electrons are in the Boron family? | 3 |
| What happens to atomic size from left to right across a period? | gets smaller |
| What is the name of the series that uranium is found in? | actinide or actinoid series |
| What nationality was the scientist Dimitri Mendeleev? | Russian |
| What are elements that have properties of both metals and nonmetals called? | metalloids |
| What is another term for noble gases? | Inert gases |
| Which group is it by name? Group that loses electrons most easily? | alkali metals |
| What is the mass of an atom with 26 protons, 26 electrons, and 30 neutrons? | 56 amu |
| Which element is called the "basis of life"? | carbon |
| What happens to metallic properties as you move across a period? | decrease |
| Which of the following is a halogen? iodine, silver, sodium, or carbon | iodine |
| What happens as you move across a period to the energy needed to remove an electron? | increases |
| What element is most abundant in the Earth's atmosphere? | nitrogen |
| What are Group B elements collectively called? | transition metals |
| How many periods are on the periodic table? | 7 |
| Why are groups in the periodic table often referred to as families? | The elements share many of the same or similar properties |
| What family is it by name: Has oxidation number of +4 or -4 | carbon family |
| What are horizontal rows on the periodic table called? | periods or series |
| What happens to atomic number as you move across a period? | increases |
| What are the elements to the left of the dark zigzag line on the periodic table called? | metals |
| Which family is being described: contains the second most active metals? | alkaline earth metals |
| What is the first row of the inner transition metals called? | lanthanoid or lanthanide series |
| What is a vertical column on the periodic table called? | group or family |
| What is the oxidation number of Group VIA elements? | -2 |
| What is the gradual wearing away of a metal due to chemical reaction in which the metal element is changed into a metallic compound? | corrosion |
| What group is it by name: These elements do not combine with other elements normally. | Noble or inert gases |
| What is the most abundant element in the Earth's crust and the second most abundant element in the atmosphere? | oxygen |
| Is it likely or unlikely for potassium and iron to react with each other? | unlikely |
| Explain why the elements in Group VIIIA are relatively stable or unreactive? | Their valence energy level is full (stable) and it does not need to gain or lose any valence electrons to become stable. |
| State the periodic law. | The physical and chemical properties of the elements are periodic functions of their atomic numbers. |
| What group is it by name: These elements are very reactive, strongly nonmetallic, and react readily with metals to form salts. | Halogens |
| What is the atomic number of an element defined as? | the number of protons |
| What group is it by name: These metals are so soft they can be cut with a knife. | Alkali metals |
| Is it likely or unlikely that copper and oxygen will react to form a binary ionic compound? | likely |
| What is a charged atom called? | Ion |
| What type of a bond hold ions together? | Ionic |
| What is another term for oxidation number? | Superscript |
| What is a compound? | Two or more elements chemically combined |
| What is the smallest unit of an element with properties of that element? | Atom |
| What is the smallest unit of a compound with properties of that compound? | Molecule |
| What two things does a chemical formula indicate? | The elements present in the compound and the number of atoms of that element |
| What is the name of the number in a formula which indicates the number of atoms present? | Subscript |
| What is the overall charge on an ionic compound? | 0 or neutral |
| How many elements are present in a binary ionic compound? | two |
| What would be the name for NaCl? | Sodium chloride |
| What would be the name for BaS? | Barium sulfide |
| What would be the chemical formula for aluminum phosphide? | AlP |
| What is the formula for Iron (II) oxide? | FeO |
| What is the name of CuO? | Copper (II) oxide |
| How is an ionic bond formed? | Transferring valence electrons or from one element losing valence electrons and one element gaining valence electrons |
| What are the most reactive metals on the periodic table? | Group IA metals or alkali metals |
| What are the most reactive nonmetals on the periodic table? | Group VIIA or halogens |
| Be able to draw an electron dot diagram for any element I give you. | Sorry, I can not post answers here because this program will only let me type letters....I can not show symbols. See your book for review |
| Why must you show the oxidation of a transition metal in parentheses in a compound name? | Because most transition metals can have differing amounts of valence electrons. Thus, each transition metal can various oxidation states. You must specify which oxidation number is present in the compound. |
| What is the general ending for the nonmetal's name in binary ionic compound nomenclature? | -ide |
| What type of elements generally form binary ionic compounds? | a metal generally combines with a nonmetal |
| How many additional electrons are required to complete the outer energy level of a phosphorous atom? | three |
| What is the name of NiBr? | Nickel (I) bromide |
| What is the name of MnS? | Manganese (II) sulfide |
| How many periods are there on the periodic table? | 7 |
| How many families are there on the periodic table? | 18 |
| What factor determines chemical reactivity of an element? | valence electrons |
| Define malleability. | Able to be hammered or pounded into a thin sheet. |
| From left to right across a period, what is the periodic trend regarding amount of energy needed to remove an electron? | It increases |
| From left to right across a period, what is the periodic trend regarding atomic size? | It decreases |
| From top to bottom of a group, what happens to atomic size? | It increases |
| From left to right across a period, what is the periodic trend regarding metallic nature? | It decreases |
| From left to right across a period, what is the periodic trend regarding valence electron number? | It increases |
| True or false??? Scientists have synthesized some of the elements that occur on the periodic table | True; see pages 415 and 441 in your textbook if you did not know this |
| If hydrogen is a non-metal, why is it placed to the left of the stairstep with the alkali metals? | Because it has one valence electron like all of the other Group IA elements |
| Why are metals good conductors of heat and electricity? | Because the valence electrons are weakly held and can travel relatively freely |
| What type of bond hold the atoms of a bar of gold (or any other metal) together? | metallic bonding |
| What group of metals often occur in nature as uncombined elements? | Transition metals because they are less reactive than Groups IA and IIA metals |
| What is the only metal that is a liquid at room temperature? | Mercury |
| What is the only non-metal tha is liquid at room temperature? | Bromine |
| _______ are different molecular structures of the same element. | allotropes |
| Elements that have more than 92 protons are called _____ _____. | transuranium elements |
| What two pieces of information does a chemical formula indicate? | What elements are present in the compound and the number of atoms present for each element |
| How is a compound produced? | by chemically combining two or more elements |
| The force that holds atoms together in a compound is called a _______ ________. | chemical bond |
| What type of a chemical bond is formed by transferring valence electrons? | ionic bonds |
| What is the smallest unit of an element with properties of the element? | atom |
| What is the smallest unit of a compound with properties of the compound? | molecule |
Created by:
lburris
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