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In a given atom no two electrons can have the same values for all the four quantum numbers.This is called
Options
(a) Hund’s Rule
(b) Aufbau principle
(c) Uncertainty principle
(d) Pauli’s Exclusion principle
Correct Answer:
Pauli’s Exclusion principle
Explanation:
No two electrons in an atom can have same values of all the four quantum numbers: e.g = 1s²
For Ist electron n = 1 , l = 0 , m = 0 , s = + 1 /2
For II nd electron n = 1 , l = 0 , m = 0 , s = – 1 /2.
Related Questions: - By which of the following processes permanent hardness of water can be removed
- 1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide
- The magnetic moment of Sc³⁺ is
- The property of crystalline solid is not
- The volume of water to be added to N/2 HCl to prepare 500 cm³ of N/10 solution is
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Structure of Atom
(90)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- By which of the following processes permanent hardness of water can be removed
- 1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide
- The magnetic moment of Sc³⁺ is
- The property of crystalline solid is not
- The volume of water to be added to N/2 HCl to prepare 500 cm³ of N/10 solution is
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structure of Atom (90)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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