The Mass Number of an Atom Is Defined as

question 63

Multiple Choice

The mass number of an atom is defined as

• A)the total number of protons,neutrons,and electrons of an atom.
• B)the total number of protons and electrons of an atom.
• C)the total number of protons and neutrons of an atom.
• D)the total number of neutrons and electrons of an atom.
• E)the total number of protons of an atom.

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