The mass number of a nucleus is equal to

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Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

The mass number of a nucleus is equal to the number of

Options:

Electrons it contains

Protons it contains

Neutrons it contains

Nucleons it contains

Correct Answer:

Nucleons it contains

Explanation:

The mass number (A), is the total number of protons and neutrons in an atomic nucleus also called nucleon.