Based on the electron configuration of the two
atoms, predict the ratio of metal cationic (+) atom
to nonmetal anionic (-) atom in the compound.
Sodium 1s22s22p63s1
Bromine 1s22s22p63s23p64s23d104p5
A. 1:1
B. 1:2
C. 2:1
D. 3:1
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