BRAINCAKEFirst Ionisation Energy
The First Ionisation Energy is the energy needed to remove one electron from each atom of one mole of atoms in their gaseous state to form one mole of gaseous +1 ions.
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More in Atomic Structure
- Orbitals
- Electronic Configurations
- Predicting Electronic Configuration
- Energy Levels and Emission Spectra
- Successive Ionisation Energies
- The Energy of an Electron
- Ionisation Energy across a Period
- Ionisation Energy Down a Group
All 19 lessons in Atomic Structure · All Edexcel AS-level Chemistry topics