The atomic number of an element corresponds to the
A) number of electrons.
B) number of protons.
C) number of neutrons.
D) total weight of one atom.

Question

Quizplus · Accepted Answer

The atomic number of an element corresponds to the number of protons in the nucleus of an atom of that element. This determines the element's identity and properties. The number of electrons can vary, but in a neutral atom, it will be equal to the number of protons. The number of neutrons is not directly related to the atomic number and can vary among different isotopes of the same element. The total weight of an atom is determined by the combined weight of protons, neutrons, and electrons, but not solely by the atomic number.

The Atomic Number of an Element Corresponds to the