We are asked to identify the statement that best describe the carbonate ion, CO32-.
C → central atom → Group 4A → 4 valence electrons
O → Group 6A → 6 valence electrons
The carbonate ion, CO32-, can best be described as having:
a) octahedral geometry about the carbon
b) a tetrahedral geometry about the C atom
c) a trigonal planar geometry about the C atom
d) a total of 22 valence electrons
e) a bond order of 2
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