The electronic configuration of element with atomic number 24 is:
(1) 1s^{2} 2s^{2} 2p^{6 }3s^{2} 3p^{6} 3d^{4} 4s^{2}
(2) 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10}
(3) 1s^{2 }2s^{2} 2p^{6} 3s^{2 }3p^{6} 3d^{6}
(4) 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{5} 4s^{1}
Ans: 1s^{2} 2s^{2 }2p^{6} 3s^{2} 3p^{6} 3d^{5} 4s^{1}