All atoms of a given element have the same ________.
A)mass
B)number of protons
C)number of neutrons
D)number of electrons and neutrons
E)density

Question

Quizplus · Accepted Answer

All atoms of a given element have the same number of protons in their nucleus, which is called the atomic number. This is what defines the element and its properties. The number of protons determines the number of electrons in a neutral atom, which balances the positive charge of the protons. Mass and density can vary among atoms of the same element due to the number of neutrons in the nucleus, which can vary among isotopes of the element.

All Atoms of a Given Element Have the Same ________