Question

Consider the electronic configuration 1s2 2s2 2p2x

Answer 1

Answer: I think your qus is incomplete. What is this x indicating??

However if we ignore x and consider the electronic configuration as 1s2 2s2 2p2 and atom to be neutral with no +ve or -ve charge......it indicate that the atom is having 6 electon.

Now we know that No. of electrons= No. of proton= Atomic No

Hence the given configuration is of Carbon.