Chemistry A-Level
Shell boundaries and large jumps
What Shell boundaries and large jumps means in Chemistry A-Level, as defined for OCR.
Definition of Shell boundaries and large jumps
Check what you remember
Read the wording for your board, then hide it and explain Shell boundaries and large jumps in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A large jump in energy marks the start of a new shell, occurring when an electron is taken from a shell closer to the nucleus.
Topics that use Shell boundaries and large jumps
- Periodicity (OCR A-Level)
Related terms
- Applying the sequence to specific elements
- atomic radius
- Cations and delocalised electrons
- delocalised electrons
- Distinction from mass number and relative atomic mass
- electrostatic attraction
- First ionisation energy
- Forces broken on melting
Using Shell boundaries and large jumps in the exam
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