An element is a substance that
A) can be broken down into simpler substances by physical means.
B) cannot be broken down into simpler substances by physical means.
C) can be broken down into simpler substances by chemical means.
D) cannot be broken down into simpler substances by chemical or physical means.

Question

Quizplus · Accepted Answer

An element is a fundamental substance that cannot be broken down into simpler substances by either chemical or physical means. It is composed of atoms all having the same number of protons.

An Element Is a Substance That