Chemistry, 21.09.2020 23:01 michaelishawilliams
Atoms of which two elements have a combined total of 23 protons?
A. Sodium, Na, and magnesium, Mg
B. Boron, B, and carbon, C
C. Copper, Cu, and zinc, Zn
D. None of these
Answers: 3
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Atoms of which two elements have a combined total of 23 protons?
A. Sodium, Na, and magnesium, Mg <...
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