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The configuration 1 s^2, 2 s^2 2 p^5, 3 ...

The configuration `1 s^2, 2 s^2 2 p^5, 3 s^1` shows

A

Excited state of `O_1^-`

B

`Excited state of neon

C

Excited state of fluorine

D

Ground state of fluorine atom

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The correct Answer is:
B
(b) The ground state of neon is `1 s^2 2 s^2 2 p^6` on excitation an electron from `2 p` jumps to `3 s` orbital. The excited neon configuration us `1 s^2 2 s^2 2 p^5 3 s^1`.
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A2Z-ATOMIC STRUCTURE-Quantum Numbers, Orbitial'S Shape, Electronic Configuration
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  10. The electronic configuration of silver atom in ground state is.

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  11. Among V(Z = 23), Cr(Z = 24), Mn(Z = 25) which will have highest magnet...

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  12. The number of electrons having l = 0 chlorine atom (Z = 17) is

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  13. Which of the following statements is not correct ?

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  14. Which of the following statements is not correct ?

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  15. Which of the following is true ?

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  16. Which of the following is true ?

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  17. Which of the following is false? a.The energy of an electron in an or...

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  18. Which of the following statement is incorrect ?

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