Elements and Compounds — CHEMISTRY STD 7 — Question
ICSE BoardEnglish MediumSTD 7CHEMISTRYElements and Compounds2 Marks
Question
What is a polyatomic ion ?
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Answer
An ion that consists of a group of atoms with an overall charge is called a polyatomic or compound ion. For example, ammonium ion $(NH^+_4),$ hydroxide ion $(OH^–),$ etc.
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