Chemistry A-Level
Fixed number of orbitals per sub-shell
What Fixed number of orbitals per sub-shell means in Chemistry A-Level, as defined for OCR.
Definition of Fixed number of orbitals per sub-shell
Check what you remember
Read the wording for your board, then hide it and explain Fixed number of orbitals per sub-shell in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Each sub-shell is built from a fixed number of orbitals, with an s-sub-shell containing one, a p-sub-shell containing three and a d-sub-shell containing five.
Topics that use Fixed number of orbitals per sub-shell
- 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
- Ion electron configurations
- Noble-gas shorthand
Using Fixed number of orbitals per sub-shell in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge