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Chemistry, 02.12.2020 20:20 Bluefurry06
A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have?
13
5
9
4
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A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons doe...
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