Chemistry, asked by shivam94698, 11 months ago

let me answer immediately

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Answered by shwetapant1980

Here is your answer
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(1)37
(-1)+18+20=37

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Hope it helps you.

shivam94698: please explain briefly

Answered by ammuchamakala

I think it's 38 May it will help u

shivam94698: explain it

ammuchamakala: an element which have 18 nos of electron and 20 nos of protons is argon and it's atomic mass is 38

shivam94698: but your answer is wrong according to gave in solutions

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