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An element’s atomic number is equal to A. the number of protons in its nucleus. B. the number of neutons in its nucleus. C. the number of protons and electrons in its nucleus. D. the number of protons
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An element’s atomic number is equal to

A.
the number of protons in its nucleus.


B.
the number of neutons in its nucleus.


C.
the number of protons and electrons in its nucleus.


D.
the number of protons and neutrons in its nucleus.

User Gian
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1 Answer

3 votes
A.
The atomic number is the number of protons the mass is the number of protons and neutrons
User Weidian Huang
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