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Chemistry, 26.02.2020 18:24 UPenn2544

For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
A.13
B. 14
C. 26
D. 27
E.40

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For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
A.1...

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