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Chemistry, 27.04.2021 22:30, meganwintergirl
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For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
А. 13
B. 14
C. 26
D. 27
E. 40
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Answers: 3
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For Al, its atomic number is 13 and its mass number is 27. How many neutrons...
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