Question

The difference in mass of a nucleus and its constituents is called ______.

Options

• Rest mass

• Mass defect

• Mass number

• Lost mass

Answer 1

The difference in mass of a nucleus and its constituents is called mass defect.

Explanation:

The mass defect of a nucleus is the difference between the mass of a nucleus and the sum of the masses of the nucleons that make it up, and it represents the mass of the nucleus's energy of binding.