The atomic number of an atom identifies the number of protons in its nucleus. If the overall charge on the atom is neutral, what must the atomic number also identify?

A. The most common isotope's mass
B. The average mass of all isotopes of the atom
C. The number of electrons in the atom
D. The number of neutrons in the atom

Question

The atomic number of an atom identifies the number of protons in its nucleus. If the overall charge on the atom is neutral, what must the atomic number also identify?

A. The most common isotope's mass 
B. The average mass of all isotopes of the atom 
C. The number of electrons in the atom 
D. The number of neutrons in the atom

tichy · Answer

C. the number of electrons in the atom

DJN1K3 · Answer

C Just took the test

tichy · Answer

The atomic number identifies the number of protons in an atom's nucleus, and if the atom is neutral, it also indicates the number of electrons. Therefore, the correct answer to the multiple-choice question is C: the number of electrons in the atom. This relationship is fundamental in understanding atomic structure and chemical behavior. 
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Answer (3)

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