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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: - Because of lanthanoid contraction,which of the following pairs of elements
- In a homonuclear molecule, which of the following sets of orbitals is degenerate?
- Alkali metals in each period have
- The most effective electrolyte for the coagulation of As₂S₃ sol is
- In Cr₂O₇²⁻ the oxidation numbers are
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
- Because of lanthanoid contraction,which of the following pairs of elements
- In a homonuclear molecule, which of the following sets of orbitals is degenerate?
- Alkali metals in each period have
- The most effective electrolyte for the coagulation of As₂S₃ sol is
- In Cr₂O₇²⁻ the oxidation numbers are
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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