Chemistry A-Level
chromium and copper anomalies
What chromium and copper anomalies means in Chemistry A-Level, as defined for AQA.
Definition of chromium and copper anomalies
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Reference: AQA
Their configurations break the filling pattern, chromium as [Ar]3d⁵4s¹ and copper as [Ar]3d¹⁰4s¹, because a half-full or full 3d sub-level is lower in energy.
Topics that use chromium and copper anomalies
- General properties of transition metals (A-level only) (AQA A-Level)
Related terms
- bidentate ligands
- denticity
- Ligand
- Monodentate ligands
- 4s lost first
- Catalytic activity
- co-ordinate bonding
- co-ordination number
Using chromium and copper anomalies in the exam
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