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- Subject
- Transition Elementschemistry-mcqs › transition-elements
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
The correct electron configuration for chromium is [Ar] 4s1 3d5 due to the extra stability gained by having a half-filled d-subshell. Options A and B show the expected filling order but do not reflect this exception, while option C lacks the electron in the 4s orbital. Option D correctly represents chromium's configuration.
More Transition Elements MCQs
Practice related questions from the same subject.
- 1.What term describes the chemical deterioration of metals caused by their interaction with the environment?
- 2.During the manufacturing of wrought iron, in which form are magnesium, silicon, and phosphorus eliminated?
- 3.What is the molecular geometry of a coordination complex when the central atom exhibits sp³d² hybridization?
- 4.How is the oxidation state typically denoted in complex compounds?
- 5.What term describes the central atom together with its attached ligands?
- 6.What is the term for a species that donates two pairs of electrons in a coordination complex?
- 7.What type of ions are formed when a transition metal compound dissolves in a salt solution?
- 8.Upon exposure to light, electrons in transition elements are excited from lower energy levels to higher energy levels in which orbitals?
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