Chemistry Chapter 3 Review Game
ChemistryChemistry Chemistry Chemistry ChemistryChemistry
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The smallest particle of an element that retains the properties of that
element.
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What is an atom?
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A positively charged subatomic particle.
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What is a proton?
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Atoms with the same number of protons but different numbers of
neutrons.
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What is an isotope?
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Total number of protons and neutrons in an
atom.
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What is mass number?
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Total number of protons in the nucleus of an
atom.
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What is atomic number?
Lived from 460 BC to 370 BC and was among first to suggest makeup of
the atom.
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Who was Democritus?
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His theory suggested atoms of the same
element are identical.
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Who is Dalton?
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The range in size of most atomic nuclei is this.
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What is 5 x10-11 m to 2 x 10-10 m?
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He used cathode ray tubes to reason
electrons are part of atoms.
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Who is Thomson?
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Relative mass of an electron.
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What is 1/1840 mass of hydrogen atom?
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The difference between hydrogen 1 and
hydrogen 2.
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What is hydrogen 1 has no neutron, hydrogen 2 has
1?
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Equals one amu.
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What is 1/12 of the mass of carbon-12?
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Chlorine has two isotopes: chlorine-35 and chlorine-37. The atomic mass for chlorine is 35.45 amu.
Which is more abundant?
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What is chlorine-35?
Element’s mass numbers of isotopes: 32 is 19%
abundant and 34 is 81% abundant. What is the average atomic mass?
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What is 33.62 amu?
Mass number of an element with 101 protons and 104
neutrons.
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What is 205?
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Atomic number of an element with 43 protons
and 46 neutrons.
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What is 43?
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Experiment by Rutherford that led him
to believe atoms are mostly empty space.
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What is the Gold Foil Experiment?
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An element has three isotopes with mass numbers and relative abundances of: 68 and 50%, 69 and 25%, 71
and 25%. What is the average atomic mass?
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What is 69 amu?
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Number of particles in the nucleus of an atom with a mass number of
82.
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What is 82 particles?
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Dalton’s Atomic Theory states these things:
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What is: 1) All elements are composed of tiny individual particles called
atoms. 2) Atoms of same element are identical and different from
those of other elements. 3) Atoms of different elements can physically mix or chemically
combine in whole number ratios. 4) Chemical reactions occur when atoms are separated, joined,
or rearranged. Atoms of one element are never changed into atoms of another element in a chemical reaction.
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