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Chemistry, 13.08.2019 05:30 bargasdevon123

What is the mass number of an oxygen atom with nine neutrons in its nucleus? (a)8 (b) 9 (c) 17 (d) 16 (e) 18

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What is the mass number of an oxygen atom with nine neutrons in its nucleus? (a)8 (b) 9 (c) 17 (d)...
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