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Pairing of electron in an degenerate orb...

Pairing of electron in an degenerate orbitals takes place only when the degenerate orbitals are filled with one eletron each

A

Pauli’s exclusion principle

B

Hund’s rule

C

Heisenberg’s principle

D

Hess’s law

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The correct Answer is:
B
By definition.
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Degenerate orbital have:

Comprehension # 1 Read the following rules and answer the questions at the end of it. Electrons in various suborbits of an filled in increasing order to their energies. Pairing of electrons in various orbitals of a suborbit takes places only after each orbital is half-filled. No two electrons in an atom can have the same set of quantum number. C (Z=24),Mn^(+)(Z=25), Fe^(2+)(Z=26) and Co^(3+) (Z=27) are isoelectronic each having 24 electrons. Thus,

Comprehension # 1 Read the following rules and answer the questions at the end of it. Electrons in various suborbits of an filled in increasing order to their energies. Pairing of electrons in various orbitals of a suborbit takes places only after each orbital is half-filled. No two electrons in an atom can have the same set of quantum number. A compound of vanadium has a magnetic moment of 1.73 BM . Electronic configuration of the vanadium ion in the compound is :

Comprehension # 1 Read the following rules and answer the questions at the end of it. Electrons in various suborbits of an filled in increasing order to their energies. Pairing of electrons in various orbitals of a suborbit takes places only after each orbital is half-filled. No two electrons in an atom can have the same set of quantum number. While writing the following electronic configuration of Fe some rules have been violated : I : Aufbau's rule, II : Hund's rule III : Pauli's exclusion principle

Comprehension # 1 Read the following rules and answer the questions at the end of it. Electrons in various suborbits of an filled in increasing order to their energies. Pairing of electrons in various orbitals of a suborbit takes places only after each orbital is half-filled. No two electrons in an atom can have the same set of quantum number. The sub-shell that arises after f sub-shell is called g sub-shell.

Comprehension # 1 Read the following rules and answer the questions at the end of it. Electrons in various suborbits of an filled in increasing order to their energies. Pairing of electrons in various orbitals of a suborbit takes places only after each orbital is half-filled. No two electrons in an atom can have the same set of quantum number. Which of these ions are expected to be paramagnetic and coloured in aqueous solution ?

ERRORLESS-STRUCTURE OF ATOM-NCERT BASED QUESTIONS (Quantum Number, Electronic Configuration and Shape of Orbitals)
  1. Identify the CORRECT statement

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  2. The explanation for the presence of three unpaired electrons in the ni...

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  3. Pairing of electron in an degenerate orbitals takes place only when th...

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  4. Which of the following sequence is correct as per Aufbau principle ?

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  5. Electron enters the sub-shell for which (n+l) value is minimum. This i...

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  6. Following Hund's rule which element contains six unpaired electron

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  7. The orbital diagram in which the Aufbau's principle is violated is

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  8. Which of the following principles/limits the maximum number of electro...

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  9. The correct ground state electronic configuration of chromium atom is ...

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  10. An element forms diatomic molecule with a triple bond. The configurati...

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  11. Electronic configuration of deuterium atom is

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  12. Electronic configurations of Cu ( Z = 29) is

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  13. Krypton (At. No 36) has the electronic configuraiton [Ar] 4s^(2)3d^(10...

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  14. Correct configuration of Fe^"+3" [26] is

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  15. What is the electronic configuration of Cu^(2+)(Z=29) of least positio...

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  16. Which one is the ground state

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  17. Which of the following electronic configurations is not possible

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  18. The outer electronic structure of 3s^2 3p^5 is possessed by

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  19. Which of the following electronic configuration is not possible accord...

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  20. Total number of unpaired electrons in an atom of atomic number 29 is

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