Question

An element's atomic number refers to — (
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A. the order in which the element was discovered

B. the number of protons in its nucleus

C.the number of atoms it is composed of

D.the number of other elements it will combine with

Answer 1

Answer:THE ANSWER IS B

Explanation:

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present