The mass number is the sum of number of protons and neutrons present in the nucleus of an atom.

False

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True

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Solution

The correct option is B True

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Similar questions

What is mass number of an element? How is the mass number related to the protons and neutrons present in the nucleus of an atom?

Consider the following statements:

1. The number of protons in the nucleus of an atom of a given element is called the atomic number of that element.

2. Mass number of an atom is defined as the sum of number of protons and neutrons present in the nucleus of an atom.

3. Atoms of an element that have the same atomic number (Z) but different mass number (A) are called isotopes.

Which of the above statements is incorrectly stated?

The total number of protons and neutrons in the nucleus of an atom is called ?

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