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The configuration 1s^(2) 2s^(2) 2p^(5) 3...

The configuration `1s^(2) 2s^(2) 2p^(5) 3s^(1)` shows

A

ground state of fluorine

B

excited state of fluorine

C

excited state of neon atom

D

excited state of neon atom

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The correct Answer is:
C
This configuration shows excited state of neon atom.
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DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
  1. The radius of the atom is of the order of

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  2. Maximum number of orbitals is given shell identified by the principal ...

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  3. The configuration 1s^(2) 2s^(2) 2p^(5) 3s^(1) shows

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  4. Electronic configuration of .(21)Sc is

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  5. Which of the following expressions gives the de-Broglie relationship?

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  6. Which of the following is electronic configuration of Cu^(2+) (Z = 29)...

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  7. Which of the following orbitals have a dumb bell shape?

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  8. Which of the following scientists demonstrated the wave nature of elec...

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  9. The quantum number which determines the shape of the orbital is

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  10. The uncertainty in momentum of an electron is 1 xx 10^-5 kg - m//s. Th...

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  11. If the radius of first Bohr orbit be a0, then the radius of the third ...

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  12. The correct ground state electronic configuration of chromium atom(Z=2...

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  13. An electron has principal quantum number 3. The number of its (i) sub-...

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  14. The uncertainty principle and the concept of wave nature of matter wer...

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  15. The first emission line of Balmer series in H spectrum has the wave nu...

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  16. The four quantum number of the valence electron of potassium are.

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  17. An alpha-particle is identical with

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  18. Heaviest particle is

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  19. The ratio of specific charge of an alpha- particle to that of a proton...

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  20. Which of the following electron configurations is correct for iron,(at...

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