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20 Cards in this Set
- Front
- Back
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What can effective nuclear charge be described by? |
Electrons of outer shells are attracted to the nucleus (+) and the electrons of inner shells repel those outer electrons (-) |
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What is electronic shielding? |
Inner electrons pushing away outer electrons that are attracted to the nucleus |
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How is the radius of an atom defined? |
Half the distance between the nuclei in a molecule with the same 2 atoms |
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If the bond length between Cl2 is 198, what is the atomic radius of Cl? |
99, 198/2 |
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What type of bond is covalent? |
A bond between 2 nonmetals where electrons are shared |
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What is an ion? |
An atom or molecule that has an overall positive or negative charge |
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What charge does a cation have? |
Positive |
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What charge does an anion have? |
Negative |
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If an atom loses an electron what is it? |
Cation |
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If an atom gains an electron what is it? |
Anion |
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What is the charge of an atom when it gains an electron? |
Negative |
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What is the charge of an atom that loses an electron? |
Positive |
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What is an ionic bond? |
A bond between a metal and nonmetal, an attraction between oppositely charged ions |
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Salt is what type of compound? |
Ionic |
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What is another term for an ionic solid? |
Salt |
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Why are cations smaller than neutral atoms? |
Because they lost an electron |
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Why are anions larger than cations? |
Because anions gained electrons while cations lost electrons |
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What is the first ionization energy? |
The energy required to remove 1 electron |
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What is the nth ionization energy? |
The energy required to remove n number of electrons |
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When is ionization very high? |
When electrons are trying to be removed from the core |
