Mass number is the sum of:

Practice MCQ for SSC, UPSC, RRB Exams

A. Electrons and protons A.
B. Electrons only B.
C. Neutrons and electrons C.
D. Protons and neutrons D.

Correct Answer: D সঠিক উত্তর: D

Explanation ব্যাখ্যা

Mass number = number of protons + number of neutrons.

Related Questions সম্পর্কিত প্রশ্ন

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