Atomic Radius Trend
Atomic radius decreases from left to right across a period due to increasing nuclear charge, and increases down a group as new electron shells are added.
Periodic Trend
Highest Values
Cs - Cesium 260.00
Rb - Rubidium 235.00
K - Potassium 220.00
Ba - Barium 215.00
Ra - Radium 215.00
Lowest Values
H - Hydrogen 25.00
F - Fluorine 50.00
O - Oxygen 60.00
N - Nitrogen 65.00
C - Carbon 70.00