Chemistry, asked by meenakshi0148, 1 year ago

If the valency of iodide is 2 why the formula of lead iodide is PbI2

Answers

Answered by GoKuL3112003

1

Answer:

Actually iodide is I^- and has valency of 1

Explanation:

Its valency is one bcos it is a halogen and needs nly one elcetron.Pb has valency of 2.

So using crisscross method we get PbI2

Pb2+ + 2I- ----->PbI2

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