W is atomic weight and n is the atomic number of an element, Physics

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If W is atomic weight and N is the atomic number of an element, then:

(1) Number of e-1= W- N

(2) Number of 0n1= W- N

(3) Number of1H1= W-N

(4) Number of 0n1= N

Ans: Number of 0n1= W- N


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