Chemistry Terms

Front

ionization energy (IE)

Back

the energy required to remove one electron from a neutral atom of an element

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electron affinity

Back

the energy change that occurs when an electron is acquired by a neutral atom

Front

electronegativity

Back

the measure of the ability of an atom in a chemical compound to attract electrons

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ion

Back

atom or group of bonded atoms that has a positive or negative charge

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cation

Back

formed by the loss of electrons, positive

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anion

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formed by the addition of electrons, negative

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main group elements

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s and p block

Front

valence electrons

Back

the electrons available to be lost, gained, or shared in the formation of chemical compounds

Front

atomic radius

Back

one-half the distance between the nuclei of identical atoms that are bonded together.