What are thhe atomic numbers of elements whose outermost electrons are represented by (i) 3s^(1) (ii) 2p^(3) and (iii) 3d^(6) ?

What are thhe atomic numbers of elements whose outermost electrons are

1.	What are thhe atomic numbers of elements whose outermost electrons are represented by (i) 3s^(1) (ii) 2p^(3) and (iii) 3d^(6) ?
Answer» SOLUTION :(i) When last SHELL is `3s^(1)`, complete E.C.`=1s^(2)2s^(2) 2p^(6) 3s^(1)` (ii) When last shell is `2p^(3)`, complete E.C. `=1s^(2) 2s^(2) 2p^(3)` (iii) When last shell is `3d^(6)`, complete E.C.`=1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4S^(2) 3d^(6)`.