How many valence electrons does carbon (C) have?

 4

Explanation:

Carbon has four valence

 electrons.For main group

 element, valence

 electrons are equal to

 group number.Carbon is

 a main group

 element.Specifically,carb

on is an element of group

 4A.That is why it has

 four valence electrons.

We can also find the

 valency electrons for

 carbon from its electron

 configuration.

The atomic number of carbon is

 6 . This means that it has

 6 protons and 6

 electrons. Here is the

 electron configuration of

 carbon.

C₆ = 1s² 2s² 2p²

For carbon,2nd energy level is the outter most shell.In second energy level we are  getting four valence electrons totally ( 2s² 2p²).