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Chemistry, 03.11.2020 17:30 kryoung08

An electrically neutral atom consists of 15 neutrons, 13 electrons, and a number of protons. What is its mass number?

A.13

B.15

C.28

D.30

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An electrically neutral atom consists of 15 neutrons, 13 electrons, and a number of protons. What i...

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