Which of the following configurations represent the elemnet in the ground and which in the excited state ? Name the element in each case : (i) 1s^(2) 2s^(1) 2p^(1) (ii) 1s^(2) 2s^(2) 2p^(1) 2p^(1) (ii) 1s^(2) 2s^(2) 2p^(1) (iii) 1s^(2)2s^(1) 2p_(x)^(1) 2p_(y)^(1) 2p_(z)^(1) (iv) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p_(x)^(1)3p_(y)^(1)3p_(z)^(1) 3d^(1)

Which of the following configurations represent the elemnet in the gro

1.	Which of the following configurations represent the elemnet in the ground and which in the excited state ? Name the element in each case : (i) 1s^(2) 2s^(1) 2p^(1) (ii) 1s^(2) 2s^(2) 2p^(1) 2p^(1) (ii) 1s^(2) 2s^(2) 2p^(1) (iii) 1s^(2)2s^(1) 2p_(x)^(1) 2p_(y)^(1) 2p_(z)^(1) (iv) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p_(x)^(1)3p_(y)^(1)3p_(z)^(1) 3d^(1)
Answer» Solution :(i) Be (II) B (iii) C (iv) S (All are in EXCITED state except (ii))