PHYSICS 10 SCIENCE · 2026–27 · From the chapter · exam-style questions · p. 170

Original MCQ based on chapter text

A nuclide has A = 15 and Z = 7. Its neutron number is:

نیوکلائیڈ میں A = 15 اور Z = 7 ہوں تو نیوٹران ہیں:

  1. (a)

    7

    7

  2. (b)

    8

    8

  3. (c)

    15

    15

  4. (d)

    22

    22

Solution & explanation

Correct choice(s): (b)

(b) N = A − Z = 15 − 7 = 8.

Independent study material · English-medium textbook p. 170 · Original book ↗