Pergunta

Question 2/3 What makes up the atomic mass? A. electrons + neutrons B. electrons + protons C. protons + neutrons
Solução

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AntônioMestre · Tutor por 5 anos
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The correct answer is C. protons + neutrons.<br /><br />Atomic mass, also known as atomic weight, is the mass of an atom. It is determined by the number of protons and neutrons in the nucleus of an atom. Electrons, although they are part of an atom, have a negligible mass compared to protons and neutrons. Therefore, the atomic mass is primarily made up of the mass of protons and neutrons.
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