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Physics, 06.09.2020 03:01 grace9874

*5. What is the mass number of a magnesium atom, Mg that has 12 neutrons? A. 12
B. 13
C. 26
D. 24

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*5. What is the mass number of a magnesium atom, Mg that has 12 neutrons? A. 12
B. 13
C...
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