What is the difference between monatomic and polyatomic ions?

1 Answer
Nov 14, 2015

Mono-atomic ions are atomic ions. Polyatomic ions are molecular ions.

Explanation:

H^-, X^-, (X = halogen), O^(2-), are all examples of mono-atomic ions. Polyatomic ions include sulfates, SO_4^(2-), nitrates, NO_3^-, thiosulfates, S_2O_3^(2-).

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