Steric number (VSEPR) (Steric number = bond pairs + lone pairs on central atom)
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Steric number = bond pairs + lone pairs on central atom
What each symbol means
| Symbol | What it stands for |
|---|---|
| BP | σ-bond pairs around central atom |
| LP | Lone pairs on central atom |
When to use this
Predicts electron-group geometry; lone pairs then squeeze bond angles.