Question

find the atomicity of chlorine if it's atomic mass is 35 and molecular mass is 21

Answer 1

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Formula of Atomicity of elements...

Atomicity of an element = molecular mass / Atomic mass

Given,
Atomic mass = 35
molecular mass = 21

Put in formula....
$atomicity \: of \: an \: \: chlorine \: = \frac{21}{35} \\ = 0.6774 g/ mol \:$

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