The atomic number of an element is equal to the number of _____ contained in one atom of that element. protons neutrons electrons protons and neutrons The atomic number of an element is equal to the number of PROTONS contained in one atom of that element.

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09-11-2016
Chemistry

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The atomic number of an element is equal to the number of _____ contained in one atom of that element. protons neutrons electrons protons and neutrons The atomic number of an element is equal to the number of PROTONS contained in one atom of that element.

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AhmatFirz AhmatFirz · Answer 1 · 2016-11-12T05:22:13+01:00

AhmatFirz AhmatFirz

12-11-2016

Correct. The atomic number of an element is equal to the number of protons contained in one atom of that element.

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itemderby itemderby · Answer 2 · 2018-12-08T09:26:11+01:00

Answer: Option (a) is the correct answer.

Explanation:

The nucleus of an atom consists of protons and neutrons. Protons are positively charged species whereas neutrons do not have any charge.

For example, the atomic number of sodium is 11. This means there are 11 protons. Whereas the mass number of sodium is 23, that is, mass number means number of protons + number of neutrons.

The number of protons in an atom displays the atomic number of the respective atom.

Thus, we can conclude that the atomic number of an element is equal to the number of protons contained in one atom of that element.