Chemistry A-Level
Noble-gas shorthand
What Noble-gas shorthand means in Chemistry A-Level, as defined for OCR.
Definition of Noble-gas shorthand
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Reference: OCR
A configuration written using a noble-gas core, such as [Ar] 4s² 3d⁶, matching the noble gas to the electrons already accounted for.
Topics that use Noble-gas shorthand
- Electron structure (OCR A-Level)
Related terms
- Atomic orbital
- Atomic orbitals
- Cations lose electrons, anions gain electrons
- Distinguishing capacity from filling order
- Electron capacity of s-, p- and d-sub-shells
- Electron configuration
- Fixed number of orbitals per sub-shell
- Ion electron configurations
Using Noble-gas shorthand in the exam
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