2
Q:
A) 2 | B) 4 |
C) 6 | D) 3 |
Answer: B) 4
Explanation:
Explanation:
The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.