Ionic Radius

Question 1

Definition of ionic radius

Answer 1

There are two kinds of ionic radius’s.
Cations - positive ion -
atomic structure with have more protons (+) than electrons (-) Radius is smaller - greater pull from protons on electrons
Anions - negative ion - atomic structure will have more electrons (-) than protons (+)
Radius is larger - weaker pull from protons on the electrons and more repulsive forces between electrons if there is more than one orbit

Question 2

Trend of ionic radius going across and explanation

Answer 2

Large to small. Radius gets larger left to right.

Question 3

Trend of ionic radius going down and explanation

Answer 3

Small to large. Radius gets smaller top to bottom