The kind of element is determined by the number of:
A) protons.
B) neutrons.
C) mesotrons.
D) electrons.

Question

Quizplus · Accepted Answer

The number of protons in the nucleus of an atom determines what element it is. This is because each element has a unique number of protons, called its atomic number.

B, C, and D are incorrect. The number of neutrons can vary within the same element, forming isotopes, but this does not change the element itself. Mesotrons (also known as muons) are not a factor in determining the kind of element. The number of electrons can vary within an atom, but this only affects its charge, not its identity as a specific element.

The Kind of Element Is Determined by the Number Of