Mathematics, 23.01.2020 22:31 anthonyhaywood
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for al, its atomic number is 13 and its mass number is 27. how many neutrons does it have?
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13
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م
نا
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16
select the correct answer.
for al, its atomic number is 13 and its mass number is 27....
select the correct answer.
for al, its atomic number is 13 and its mass number is 27....
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