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Chemistry

S1 Exam Review

QuestionAnswer
What scientist discovered the atom Democritus
Atoms come from the Greek word Atomos
John Dalton's Theory matter is composed of indivisible particles
John Dalton's Theory different elements have different atoms
John Dalton's Theory atoms combine in certain whole number ratios
John Dalton's Theory in a chemical reaction atoms are rearranged to form new compounds
What are some problems associated with John Dalton's Theory atoms can be divided ; but only in nuclear reaction
J.J Thompson's Plum Pudding Model & discovery atom as being made up of these capsules swarming a sea of positive charge
Ernest Rutherford's Gold Foil Experiment atoms are merely rearranged; alpha particles were released as a thin beam towards a thin piece of gold foil 98% went straight through, 2% went through deflected by large angles
who discovered the nature of electrons charge? Joseph John Thomson
What scientist names the electron G.Johnstone Stoney
What scientist determined that electrons reside in specific energy levels? Niels Bohr
Who discovered the neutron? James Chadwick
What scientist discovered the mole concept? Amedeo Avogadro
What scientist discovered the mass of an electron and confirmed that the electron carries a negative charge? Robert A Millikan
What are subatomic particles composed of? protons, neutrons, electrons
proton p+ 1
electron e- 0
neutron n^o 1
protons and neutrons cluster together to form the central core of what? nucleus
what is the smallest particle of an element that has the chemical properties of the element? atom
what is an atomic number proton
what is a mass number proton & neutron
How do you determine the neutrons in an element? atomic mass - atomic number
how many quarks are there six
what are the quarks up, down, charm, top, bottom, strange
what is an atom of same element but different mass number? isotope
what is an atom/molecule group that has gained/lost one or more electrons ion
what is the charge of a cation positive
what is the charge of an anion negative
metals___electrons gain
nonmetals___electrons lose
what is the form of energy that exhibits wavelike behavior as it travels through space? electromagnetic radiation
what is the entire frequency range of electromagnetic waves electromagnetic spectrum
for every quantum state the standard deviation of is position multipled by the standards of its momentum Heisenberg Uncertainty Principle
determines which term symbol corresponds to the ground state Hund's Rule
electrons in the outermost shell of an atom electrons
who discovered the periodic table Dmitri Mendeleev
how did D.Mendeleev arrange the periodic table according to properties, trends, and patterns
Who arranged the periodic Table according to increasing atomic numbers? Moseley
physical & chemical properties of elements are periodic functions of atomic numbers periodic law
who discovered the law of triads? Johann Dobereiner
who discovered Law of octaves jOHN nEWLANDS
tendency of an atom to attract electrons in the formation of an ionic bond electronegativity
energy required to move valence electron ionization energy
measurement of size of an ion in a crystal lattice ionic radius
measures size of atoms; distance fom nucleus atomic radius
all elements occur naturally up to__? #92, Uranium
radioactive elements actinides
shiny, similar to group 2 lanthanides
elements show similar behavior to the 8th element following it in the table law of octave
S block groups Group 1 & Group 2
highly reactive, react with oxygen in air, stored in oil, silvery in appearance, good conductors of heat alkali metals
group 1 alkali metals
group 2 alkaine metals
group 3 - 8 transition metals
group 7A halogens
groups 8A noble gases
harder, denser, stored in oil, stonger, higher melting points than group 1 alkaline metals
only elements thats a metal & liquid transition metal Mercury
Created by: christianex3
 

 



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