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The atomic mass of an element A. The sum of the protons and electrons in one atom of the element B. Twice the number of protons in one atom of the element C. A ratio based on th…

The atomic mass of an element A. The sum of the protons and electrons in one atom of the element B. Twice the number of protons in one atom of the element C. A ratio based on th…
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The atomic mass of an element

A. The sum of the protons and electrons in one atom of the element
B. Twice the number of protons in one atom of the element
C. A ratio based on the mass of carbon-12 atom
D. A weighted average of the masses of an elements isotopes

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User Evertvandenbruel
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1 Answer

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The number of protons in the nucleus of an atom determines an element's atomic number.

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User Taufique
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