How many valence electrons does C have?

Answer:

 C has 4 valence electrons.

Explanation:

C atom has four valence electrons.These electrons are important for C to form bonds with other atoms.

To find out the number of valence electrons in a C atom,we need to look at the periodic table.

The position of C in the periodic table  is in group 4A.For main group elements,valence electrons are equal to the group number.So a C atom has four valence electrons in its valence shell.

Carbon is an element of group 14.Now just consider the unit place digit from group number.You are getting 4 which is equal to the number of valence electrons in carbon.

Here is the another way to find out the valence electrons of carbon.

The atomic number of carbon is 6.So it has six electrons totally.

Now do the electronic configuration of carbon.

C(6) =1s2 2s2 2p2

The valence shell is the outermost shell and the electrons that are present in valence shell is called valence electrons.

The valence shell or energy level can be identified by the highest value of principal quantum number ,n.Here the highest value of n is 2.So,the valence shell is the 2nd shell.

In 2nd shell we get 4 valence electrons.So  each C has 4 valence electrons.