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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: - The effective atomic number for [Rh(H₂O)₆]³⁺ (atomic number for Rh is 45) is
- The momentum of a particle having a de Broglie wavelength of 10⁻¹⁷metres is
- The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
- Which is purified by steam distillation
- If pH of A,B,C and D are 9.5, 2.5,3.5 and 5.5 respectively, then strongest acid 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
- The effective atomic number for [Rh(H₂O)₆]³⁺ (atomic number for Rh is 45) is
- The momentum of a particle having a de Broglie wavelength of 10⁻¹⁷metres is
- The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
- Which is purified by steam distillation
- If pH of A,B,C and D are 9.5, 2.5,3.5 and 5.5 respectively, then strongest acid 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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