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Which sub-shell has maximum energy (poly...

Which sub-shell has maximum energy (poly-elecronic system ) :

A

`4f`

B

`6s`

C

`5d`

D

`5p`

Text Solution

Verified by Experts

The correct Answer is:
C
` n+l` value for `5d` and ` 4f` is ` 7.` if `b+l` is same higher value of `n` is same higher value of n shows higher energy .
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The sepence of filling electgron in sub-shells of element with few exception in d-block and f-block element is govemed by.Aufhau principal followed by Hand's rule and palli's ecxcited principal a. The electron prefers to unter into sub-shell with lower (n +1) values The energy for any sub-shell of an element other than hydrogen is preportioanal to the sum of principal quantum number (n) and angular momentum quantum number b. If (n + 1) value is same for many sub-shell with lowest n value c. i. Fulfiling sub-shell is more stable ii. Half filled sub-shell is more stable less than half filed Which pair of sub-shell has same energy for above described excriptional element under rule (a) ?

P BAHADUR-ATOMIC STRUCTURE-Exercise 3A
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  2. The first emission line of Balmer series in H spectrum has the wave nu...

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  3. Which sub-shell has maximum energy (poly-elecronic system ) :

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  4. When greater number of excited hydrogen atoms reach the ground state :

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  5. The number of waver made by an elercrtron moving in an orbit having ma...

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  6. For which of the following process enrgy is absorbed :

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  7. An ion (Mn^(a+)) has the magnetic moment equal to 4.9 B.M What is the ...

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  8. The ratio of kinetic energy and potential energy of an electrron in an...

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  9. The angular momentum of elerctro of H-atom is proprtional to :

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  10. The total number of electron is 1. g CH4 are :

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  11. The probability of finding elercrtron at a distance r form the nucleus...

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  12. In aufbau principle, the word aufbau represents :

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  13. Two elecrtrons A and B in an atom have the following set of quantum nu...

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  14. The first obrital of H or H like atom is represencted by psi = 1/( s...

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  15. Total numbr of nodal planes aresame in :

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  16. The change in molar enrgy noticed during atomic transimission of 5 her...

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  17. The angular momentum of an electron in a orbital is given as …………

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  18. The first atom with obncomplete d-shell is :

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  19. Six valence electrons of oxygen are labelled as AB in 2s orbitals and ...

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  20. The correct Schrodingers's wave equation for an electron with e as tat...

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