The atom with the electron configuration 1s2 2 2s2 2 2p63s2 2 3p6 6 3d10 10 4s2 2 4p4 4 is in

The atom with the electron configuration
1s2 ${}^2$2s2 ${}^2$2p63s2 ${}^2$3p6 ${}^6$3d10 ${}^{10}$4s2 ${}^2$4p4 ${}^4$ is in