Atomic and Ionic Radii
Atomic Radii
Atomic Radii: half the distance between the nucleus of identical, bonded atoms (like the radius of a circle).
**Decreases going across a period
**Increases going down a group
**Decreases going across a period
**Increases going down a group
Ionic Radii
Ionic Radii: radius of an atom's ion in an ionic compound. Depends on ionization and neighboring atoms. (pm)