The number of _______ in an atom of an element is the element's atomic number. a. neutrons b. protons c. electrons d. mass

asked May 24, 2017 89.3k views

4 votes

The number of _______ in an atom of an element is the element's atomic number.

a. neutrons
b. protons
c. electrons
d. mass

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5 votes

The number of: Protons.

Diederikh answered May 30, 2017

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