21st November 2019

softschools
14

What is an anion and cation?

Anion vs. Cation. Ions result from atoms or molecules that have gained or lost one or more valence electrons, giving them a positive or negative charge. Those with a negative charge are called anions and those with a positive charge are called cations.

What is the main difference between monatomic and polyatomic ions?

A monatomic ion consists of a single atom that is ionized. For example Na+, Cl-, Fe+3, O-2. A polyatomic ion consists of several atoms bonded to each other, but acting as if it were one ion. ClO3-, NH3+, SO4-2, CO3-2.
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