Isobars differ in:

Practice MCQ for SSC, UPSC, RRB Exams

A. Mass A.
B. Atomic mass B.
C. Number of nucleons C.
D. Number of protons D.

Correct Answer: D সঠিক উত্তর: D

Explanation ব্যাখ্যা

Atomic number (Z) varies in isobars.
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