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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: - When the first ionisation energies are plotted against atomic number
- Tollen’s test can be used to distinguish
- Tritium is the isotope of
- At S.T.P the density of CCl₄ vapours in g/L will be nearest to
- When alkyl halide is heated, with dry Ag₂O, it produces
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
- When the first ionisation energies are plotted against atomic number
- Tollen’s test can be used to distinguish
- Tritium is the isotope of
- At S.T.P the density of CCl₄ vapours in g/L will be nearest to
- When alkyl halide is heated, with dry Ag₂O, it produces
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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