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The electronic configuration of an eleme...

The electronic configuration of an element is `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1)` .This represents its

A

Excited state

B

Ground state

C

Cationic form

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
`Fe^(3+) = 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)`
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ALLEN-ATOMIC STRUCTURE-Exercise - 02
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  2. The explanation for the presence of three unpaired electrons in the ni...

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  3. The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)...

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  4. Which of the following has maximum number of unpaired electron (atomic...

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  5. Which quantum number is not related with Schrodinger equation :-

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  7. It is known that atom contain protons. Neutrons and electrons. If the...

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  8. Give the correct order of initials T (true) or F (false) for following...

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  9. The shortest wavelength of He^(+) in Balmer series is x. Then longest ...

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  10. An electron in a hydrogen atom in its ground state absorbs energy equa...

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  11. In compound FeCl(2) the orbital angular momentum of last electron in i...

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  12. An electron, a proton and an alpha particle have kinetic energy of 16...

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  13. Question : Is the specie paramagnetic ? STATE-1 : The atomic number ...

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  14. Given DeltaH for the process Li(g)rarrLi^(+3)(g) + 3e^(-) is 19800kJ/...

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  15. The ratio of difference in wavelengths of 1^(st) and 2^(nd) lines of L...

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  16. Which of the following statement is INCORRECT.

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  17. The quantum number of four electrons (el to e4) are given below :- ...

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  18. If radius of second stationary orbit (in Bohr's atom) is R. Then radiu...

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  19. The wavelength associated with a gold weighing 200g and moving at a sp...

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  20. If nitrogen atoms had el,ectonic configuration is ? It would have en...

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