Question

SnCl₂ is a compound with tin having +2 charge. How do we know it? I mean is there a formula?

Answer 1

Answer:

see below

Explanation:

Sn is a metal. so use + symbol

Cl atomicity is 2. so by criss-cross method Sn gets 2 number

therefore..

Sn : +2

OR

see it's valency in periodic table from electronic configuration

Answer 2

Answer:

Sn is one molecule

chlorine is two molecules

valency of cl is '-1' if two molecules then '-2'

so that tin is '+2'

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