Question

Calculate the number of neutrons present in the nucleus of an element X which is represented as 31/15 X.Also calculate mass number and atomic number.

Answer 1

Dear Student,

Considering X as ³¹X₁₅.
Comparing ^{Mass Number}X_{Atomic Number} = ³¹X₁₅

atomic number =no. of protons = 15

mass number=Number of protons + Number of neutrons=31

15 + Number of neutrons=31

Number of neutrons=16

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