Question

Plzz give me the correct answer

Answer 1

Answer:

Answer is option a

Explanation:

Let us consider an element  ₐXᵇ with atomic number 'a' and mass number 'b'

We know that,

no. of neutrons = atomic mass - atomic number

So,

n = b-a                  (∵ from the consideration ₐXᵇ )

⇒b= n+a

this is nothing but the sum of no of protons and neutrons

Answer 2

Explanation:

Option A.....

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