a. The atomic mass defines the elemental identity of an atom. b. The atomic number of an element is approximately equal to the number of protons in an atom of that element. c. Helium is the smallest atom and has an atomic number of 1. d. Isotopes of the same element have the same atomic mass.

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03-08-2021
Chemistry

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a. The atomic mass defines the elemental identity of an atom. b. The atomic number of an element is approximately equal to the number of protons in an atom of that element. c. Helium is the smallest atom and has an atomic number of 1. d. Isotopes of the same element have the same atomic mass.

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