The number of protons in the nucleus of an atom is indicated by the
A)atomic mass
B)atomic number
C)molecular formula
D)atomic weight
E)valence number

Name: The number of protons in the nucleus of an atom is indicated by the A)atomic mass B)atomic number C)molecular formula D)atomic weight E)valence number
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Question

Quizplus · Accepted Answer

The atomic number represents the number of protons in the nucleus of an atom. It is also what determines the identity of the element as each element has a unique number of protons.

The Number of Protons in the Nucleus of an Atom