Successive Ionization Energies: Core Jump (Huge jump in ionization energy when the next electron removed comes from a completed inner)
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Huge jump in ionization energy when the next electron removed comes from a completed inner shell
What each symbol means
| Symbol | What it stands for |
|---|---|
| I_k | k-th ionization energy |
When to use this
Gas-phase species. The ‘jump’ locates the valence electron count; used to infer group number.