1s2 2s2 2p6 3s2 3p3 ||What is 1s2 2s2 2p6 3s2 3p3 ?||What element has ...

1s2 2s2 2p6 3s2 3p3 ||What is 1s2 2s2 2p6 3s2 3p3 ?||What element has ...