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Chemistry, 08.10.2020 04:01 kathyc53

An atom has a mass number of 9 and 5 neutrons What is its atomic number? A. 14
B. 11
C. 19
D. 4

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An atom has a mass number of 9 and 5 neutrons What is its atomic number? A. 14
B. 11
C....
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