Question

The atomic number, or ________ number, is the described as the number of _________ in the nucleus of an chemical element. A) proton, protons B) photon, photons C) neutron, neutrons D) electron, electrons

Answer 1

A!

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Answer 2

Answer: Option (A) is the correct answer.

Step-by-step explanation:

Atomic number is defined as the sum of total number of protons present in an atom. Each element has different atomic number.

And, atomic mass is the summation of total number of protons and electrons present in the nucleus of an atom.

For example, atomic number of fluorine is 9 which also means that a fluorine atom contains 9 protons.

Thus, we can conclude that the atomic number, or proton number, is the described as the number of protons in the nucleus of a chemical element.