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Chemistry, 12.05.2021 02:40 sarak2212

Which isotopic notation identifies a metalloid that is matched with the corresponding number of protons in each of its atoms?
1.
24 Mg and 12 protons
2.
28 Si and 14 protons
3.
75 As and 75 protons
4
80 Br and 80 protons
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