Question

question 1
what is the sum of valence electrons for carbonate ion?
22 v.e.
16
12
24 v.e.

Explanation:

Step1: Determine valence electrons of each atom

Carbon (\(C\)) has \(4\) valence electrons. Oxygen (\(O\)) has \(6\) valence electrons. The carbonate ion is \(CO_{3}^{2 -}\).

Step2: Calculate total valence electrons

There is \(1\) carbon atom and \(3\) oxygen atoms. Also, consider the \(2 -\) charge (add \(2\) electrons).

$$4+(3\times6)+2$$

$$=4 + 18+2$$

$$=24$$

Answer:

\(24\) v.e.