Question

how many valence electrons does carbon have?
2
4
8
6

Explanation:

Carbon has an atomic number of 6. Its electron - configuration is 1s²2s²2p². The electrons in the outermost shell (n = 2 in this case) are the valence electrons. There are 2 electrons in the 2s orbital and 2 electrons in the 2p orbital, making a total of 4 valence electrons.

Answer:

B. 4