All atoms of a given element contain the same number of ____.
A)ions
B)protons only
C)neutrons only
D)electrons and neutrons
E)protons and neutrons

Question

Quizplus · Accepted Answer

All atoms of a given element have the same number of protons in their nucleus, which is known as the atomic number of that element. This is what defines the identity of the element. The number of neutrons in the nucleus may vary among isotopes of the same element, and the number of electrons in an atom can vary due to the presence of ions or through chemical reactions.

All Atoms of a Given Element Contain the Same Number