Question:
The difference between the rest mass of the nucleus and the sum of the masses of the nucleons composing a nucleus is known as:
The difference between the rest mass of the nucleus and the sum of the masses of the nucleons composing a nucleus is known as:
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The mass defect is the difference between the mass of a nucleus and the sum of its individual nucleons, and it is related to the binding energy of the nucleus.
Updated On: Apr 28, 2026
- Binding energy
- Mass defect
- Nuclear energy
- Isotopic mass
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The Correct Option is B
Solution and Explanation
Step 1: Meaning of mass defect
In a nucleus, the total mass of protons and neutrons when separated is greater than the actual mass of the nucleus.
Step 2: Definition
The difference between the sum of the masses of individual nucleons and the actual mass of the nucleus is called the mass defect.
Step 3: Physical significance
This missing mass is converted into binding energy that holds the nucleus together.
Final Answer:
Thus, the difference is known as the mass defect.
In a nucleus, the total mass of protons and neutrons when separated is greater than the actual mass of the nucleus.
Step 2: Definition
The difference between the sum of the masses of individual nucleons and the actual mass of the nucleus is called the mass defect.
Step 3: Physical significance
This missing mass is converted into binding energy that holds the nucleus together.
Final Answer:
Thus, the difference is known as the mass defect.
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