05-09-2017
Physics

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What information does the atomic mass of an element provide?

A ) the sum of electrons and protons in an atom

B) the difference between the numbers of protons and electrons

C) the number of protons and neutrons in an atom

D) the number of isotopes

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12-09-2017

By definition, the atomic mass of an element is approximately the sum of the mass of protons and neutrons.

Of the choices given, C makes the most sense.

Answer: C) the number of protons and neutrons in an atom.

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