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Chemistry, 20.12.2019 17:31 damilysgonzalez2

1) element x has a nucleon (mass) number of 19 and a proton (atomic) number of 9.
to which group in the periodic table does it belong?
a) 1 b) 3 c) 7 d) 0

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1) element x has a nucleon (mass) number of 19 and a proton (atomic) number of 9.
to which gro...
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