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What determines the atomic mass of an element? A. the sum of the neutrons and the electrons B. the sum of the protons and electrons C. the sum of the ions and isotopes D. the sum of the protons and the
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What determines the atomic mass of an element?

A.
the sum of the neutrons and the electrons

B.
the sum of the protons and electrons

C.
the sum of the ions and isotopes

D.
the sum of the protons and the neutrons

User Audrina
by
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1 Answer

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D. protons + neutrons. Electrons have relatively small mass compared to them. 
User Alessandro Carughi
by
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