Question

use the periodic table to answer the following questions.
how many valence electrons does oxygen have? 6
complete
type in the correct values to correctly represent the valence electron configuration of oxygen: $as^b2p^c$
a=
b =
c =
what is the charge of an oxygen ion? -
done

Explanation:

Step1: Find valence shell of oxygen

Oxygen is in period 2, so valence shell is $n=2$.

Step2: Determine s orbital exponent

The 2s subshell of oxygen is fully occupied, so $B=2$.

Step3: Determine p orbital exponent

Oxygen has 6 valence electrons; 2 fill the 2s, so $6-2=4$ left for 2p, so $C=4$.

Step4: Find oxygen ion charge

Oxygen gains 2 electrons to fill valence shell, so charge is $-2$.

Answer:

A=2
B=2
C=4
What is the charge of an oxygen ion? -2