Atomic number of an element is the number of _______ present in the nucleus.

protons

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neutrons

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electrons

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proton+neutron

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Solution

The correct option is A
protons

Atomic number of an element is the number of protons present in the nucleus.

Suggest Corrections

Similar questions

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?

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?

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