Page 256 - Saunders Comprehensive Review For NCLEX-RN
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Molecule
A molecule is 2 or more atoms that combine to form a substance.
Ion
An ion is an atom that carries an electrical charge because it has gained or lost
electrons.
Some ions carry a negative electrical charge and some carry a positive charge.
Cation
A cation is an ion that has given away or lost electrons and therefore carries a
positive charge.
The result is fewer electrons than protons, and the result is a positive charge.
Anion
An anion is an ion that has gained electrons and therefore carries a negative
charge.
When an ion has gained or taken on electrons, it assumes a negative charge and
the result is a negatively charged ion.
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