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Byju's Answer
Standard XIII
Chemistry
Aufbau Principle
Match the fol...
Question

Match the following:

Rules Statements
A) Hund's rule of maximum multiplicity P) No two electrons in an atom can have the same set of quantum numbers
B) Aufbau principle Q) Half-filled and completely filled orbitals have extra stability
C) Pauli's exclusion principle R) Pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly occupied
D) Hiesenberg's Uncertainity Principle S) It is impossible to determine the exact position and exact momentum of a subatomic particle simultaneously
T) In the ground state of atoms, orbitals are filled in the order of their increasing energies

A
A)−R),B)−T),C)−P),D)−S)
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B
A)−S),B)−T),C)−Q),D)−R)
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C
A)−R),B)−T),C)−S),D)−P)
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D
A)−S),B)−P),C)−T),D)−Q)
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Solution

The correct option is A A)−R),B)−T),C)−P),D)−S)
Hund's rule states that pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly occupied.

Aufbau's Principle states that orbitals are filled in the order of increasing energy which is determined by the value of n+l.

Pauli's exclusion principle states that no two electrons in an atom can have the same set of quantum numbers.

Hiesenberg's Uncertainity Principle states it is impossible to determine the exact position and exact momentum simeltaneously for a sub-atomic particle.

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Q. Match the following rules with their statements :
Rules Statements
A Hund’s Rule (i) No two electrons in an atom can have the same set of four quantum numbers.
B Aufbau Principle (ii) Half-filled and completely filled orbitals have extra stability.
C Pauli Exclusion Principle (iii) Pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly occupied.
D Heisenberg’s Uncertainty (iv) It is impossible to determine the exact position and exact momentum of a subatomic particle simultaneously.
(v) In the ground state of atoms, orbitals are filled in the order of their increasing energies

Q. Match the following:
Rules Statements
A) Hund's rule of maximum multiplicity P) No two electrons in an atom can have the same set of quantum numbers
B) Aufbau principle Q) Half-filled and completely filled orbitals have extra stability
C) Pauli's exclusion principle R) Pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly occupied
D) Hiesenberg's Uncertainity Principle S) It is impossible to determine the exact position and exact momentum of a subatomic particle simultaneously
T) In the ground state of atoms, orbitals are filled in the order of their increasing energies

Q. The Heisenbergs Uncertainty principle states that:
Q. Assertion :The ground state electronic configuration of nitrogen is as shown in diagram Reason: Electrons are filled in orbitals as per aufbau principle, Hund's rule of maximum spin multiplicity and Pauli's principle.
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Q. According to which principle/rule, electron pairing starts only when all the orbitals of same energy are singly occupied?
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Aufbau Principle
Standard XIII Chemistry
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