The mass of an atom is determined by the sum of the masses of _____

Electrons

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Neutrons

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Neutrons and protons

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Electrons and neutrons

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Solution

The correct option is C
Neutrons and protons

The mass number of an atom is the total number of protons and neutrons in an atomic nucleus.
Hence the correct answer is Option C.

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The mass of an atom is determined by the sum of the masses of _____

The correct option is C Neutrons and protonsThe mass number of an atom is the total number of protons and neutrons in an atomic nucleus. Hence the correct answer is Option C.

The correct option is C
Neutrons and protons

The mass number of an atom is the total number of protons and neutrons in an atomic nucleus.
Hence the correct answer is Option C.