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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: - If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- Cassiterite is concentrated by
- Formula of hexaaquamanganese(II)phosphate is
- Kinetic energy of one mole of an ideal gas at 300 K is
- Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
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
- If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- Cassiterite is concentrated by
- Formula of hexaaquamanganese(II)phosphate is
- Kinetic energy of one mole of an ideal gas at 300 K is
- Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
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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