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28 Cards in this Set
- Front
- Back
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Term for a positively charged ion?
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Cation
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What is the maximum number of electrons that can occupy the 2p sublevel?
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6
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Which of the Halogens is a liquid at room temp?
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Bromine
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A horizontal row in the modern periodic table is called a...
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Period
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The isotope of Hydrogen that has 2 neutrons is called...
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Tritium
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The letter designations s,p,d,f stand for...
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different electron orbitals within an energy level
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A vertical column in the modern periodic table is called...
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group
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Atoms that have the same atomic # but different # of neutrons are...
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isotopes
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As the energy level of an electron increases, the electron's distance from the nucleus, on average...decreases, increases, remains the same
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increases
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Elements in the same group have the same number of...
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valence electrons
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Essentially allof the mass of an atom is due to the ...
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nucleons
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With the discovery of isotopes, which postulates of Dalton's original atomic theory must be modified?
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Atoms of the same element are the same.
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In which group do all atoms have one valence electron on ground state?
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Alkali Metals
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The mass of the electrons in atoms is generally regarded as...
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insignificant
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In the quantum mechanical view of the atom, electrons are confined to charge clouds called...
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orbitals
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Which of the Halogens is a solid at room temp?
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Iodine
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What is the maximum # of electrons that can occupy a single p orbital?
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2
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As the energy level of an electron increases, the electron's distance from the nucleus on average..increases, decreases, or cannot be predicted?
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increases
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In which group do all atoms have 2 valence electrons in the ground state?
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Alkaline Earths
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The electrons in the outermost energy level of an atom are called...
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valence electrons
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An alpha particle is the same as a...
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helium-4 nucleus
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Which of the following particles has a mass of 4 amu and a charge of 2+?
proton alpha particle electron neutron |
alpha particle
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An anion is a ...
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negatively charged ion
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In which group do all atoms have 8 valence elecrons in the ground state?
alkali metals halogens noble gases alkaline earths |
noble gases
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The number of electrons in a neutral atom is equal to the...
atomic mass atomic weight line spectrum atomic number |
atomic number
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An f sublevel can hold a maximum of ...
6 electrons 10 electrons 2 electrons 14 electrons |
14 electrons
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The noble gases are a unique group of elements. They are recognized as unique due to the fact that they are...
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extremely stable and unreactive
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The mass of a nucleon is approximately...
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equivalent to the mass of the electron.
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