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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