An atom was observed with +3 charge, n = 38, and e = 28. What is the mass number of the atom? A. 66 B. 69 C. 72 D. 63

asked Oct 19, 2023 81.2k views

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An atom was observed with +3 charge, n = 38, and e = 28. What is the mass number of the atom?

A. 66
B. 69
C. 72
D. 63

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9 votes

Answer: 66

Explanation: To find the mass number you would have to add the number of protons and the number of neutrons.

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