The chemical characteristics of an atom (what element it is)are determined by
A)its atomic number.
B)its mass number.
C)its neutron number.
D)its nucleon number.
E)All of these are correct.

Question

Quizplus · Accepted Answer

An atom's atomic number, which is the number of protons in its nucleus, determines what element it is. The number of neutrons (neutron number) and the total number of nucleons (mass number) do not necessarily identify the element.

The Chemical Characteristics of an Atom (What Element It Is)are