The number of which subatomic particle designates the atomic number of an element? select one:

Question

Chemistry

Kaylee Velazquez

10 October, 10:04

The number of which subatomic particle designates the atomic number of an element? select one:

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Answers (2)

Know the Answer?

Kadyn Holmes · Answer 1

The number of protons always equals the atomic number of an element.

Chace · Answer 2

The atomic number is determined by the number of protons in the atom.

Neutrons can vary the mass of atoms of the same element; atoms of the same element with the different atomic masses are called isotopes.

Electrons do not contribute a meaningful amount of mass to an atom, and only vary the charge of the atom. A charge atom is an ion.