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Which of the following electronic config...

Which of the following electronic configuration corresponds to an inert gas? A)`1s^(1) 2s^(2) 2p^(5)` B)`1 s^(2) 2s^(2) 2p^(6)` C)`1 s^(2) 2s^(1)` D)`1 s^(2) 2s^(2) 2p^(6) 3s^(1)`

A

`1s^(1) 2s^(2) 2p^(5)`

B

`1 s^(2) 2s^(2) 2p^(6)`

C

`1 s^(2) 2s^(1)`

D

`1 s^(2) 2s^(2) 2p^(6) 3s^(1)`

Text Solution

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The correct Answer is:
B
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Name the element with the following electronic configurations . (a) 1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(1) (b) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(1) (c ) 1s^(2) 2s^(1) 2p^(6) 3s^(2) 3p^(6) 3d^( 5) 4s^(1)

Elements A, B, C, D and E have the following electronic configurations: A: 1s^(2) 2s^(2) 2p^(1) B: 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(1) C: 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) D: 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5) E: 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) Which among these will belong to the same group in the periodic table?

Q .Which of the following electron configurations is correct for nickel (atomic number "28" )? a) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(1)3d^(9) (b) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^(8) (c) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(0)3d^(10)

Consider the gorund state electronic configurations given belwo: X - (1s^(2) 2s^(2) 2p^(6)), Y : ( 1s^(2) 2s^(2) 2p^(4)) , Z : (1s^(2) 2s^(2)), Q (1s^(2) 2s^(2) 2p^(6) 3s^(1)) . Pick up the correct answers. Which of the above configuration is associated with highest and which is associated with lowest ionization energy?

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