How do you determine the mass number of an atom?

it is equal to the number of protons plus the number of neutrons.

it is equal to the number of protons.

it is equal to the number of protons plus the number of electrons.

it is equal to the number of electrons plus the number of neutrons.

it is equal to the number of protons minus the number of neutrons.

Chemistry Atomic Structure Quiz Questions and Answers

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Reviewed by Zohra Sattar Waxali

Zohra Sattar Waxali, PhD (Chemistry) |

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Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.

, PhD (Chemistry)

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