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The order of filling of electrons inthe orbitals of an atom will be
Options
(a) 3d, 4s, 4p, 4d, 5s
(b) 4s, 3d, 4p, 5s, 4d
(c) 5s, 4p, 3d, 4d, 5s
(d) 3d, 4p, 4s, 4d, 5s
Correct Answer:
4s, 3d, 4p, 5s, 4d
Explanation:
The sub-shell with lowest value of (n + l) is filled up first. When two or more sub-shells have same (n + l) value the subshell with lowest value of ‘n’ is filled up first therefore the correct order is orbital 4s3d4p5s4d
Related Questions: - A corked flask containing boiling water and its vapour is allowed
- Which of the following acts as both reducing and oxidising agent
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- The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ.
- Which one of the following elements has the maximum electron affinity?
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
- A corked flask containing boiling water and its vapour is allowed
- Which of the following acts as both reducing and oxidising agent
- Formalin is a
- The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ.
- Which one of the following elements has the maximum electron affinity?
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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