Write the distribution of electrons in carbon and sodium atoms?

The total number of electrons in a carbon atom is 6. The distribution of electrons in carbon atom is given by:

First orbit             or       K-shell         = 2 electrons

Second orbit       or        L-shell         = 4 electrons

Or,

we can write the distribution of electrons in a carbon atom as 2, 4.

The total number of electrons in a sodium atom is 11. The distribution of electrons in sodium atom is given by:

First orbit          or         K-shell         = 2 electrons

Second orbit    or          L-shell          = 8 electrons

Third orbit      or          M-shell         = 1 electron

Or,

we can write distribution of electrons in a sodium atom as 2, 8, 1.