how to find atomic mass explain me with example
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actually i have a trick.
first 11 elements you should remember and after that my formula is n , n+1, n+3, n+1, n+3 so onn....till 30
first 11 elements you should remember and after that my formula is n , n+1, n+3, n+1, n+3 so onn....till 30
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