Exams › NEET › Chemistry

The difference between the mass number and the atomic number gives the

1. number of neutrons
2. number of electrons
3. charge of an element
4. number of protons

Correct answer: number of neutrons

Solution

The mass number is the total of protons and neutrons, while the atomic number is only the number of protons. Subtracting them leaves the number of neutrons.

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