Problem
Atoms of which two elements have a combined total of 39 protons?
A Nickle, Ni, and co...
Chemistry, 02.02.2021 19:50 LaughterLies
Problem
Atoms of which two elements have a combined total of 39 protons?
A Nickle, Ni, and copper, Cu
B None of these
CPotassium, K, and calcium, Ca
DNitrogen, N, and oxygen, O
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