Elements Listed by Atomic Radius
Name Sym Radius (pm)
Francium Fr 270
Caesium Cs 260
Rubidium Rb 235
Radium Ra 233
Potassium K 220
Barium Ba 215
Strontium Sr 200
Lanthanum La 195
Thallium Tl 190
Polonium Po 190
Actinium Ac 188
Samarium Sm 185
Promethium Pm 185
Praseodymium Pr 185
Neodymium Nd 185
Europium Eu 185
Cerium Ce 185
Yttrium Y 180
Thorium Th 180
Sodium Na 180
Protactinium Pa 180
Lead Pb 180
Gadolinium Gd 180
Calcium Ca 180
Ytterbium Yb 175
Uranium U 175
Dysprosium Dy 175
Thulium Tm 175
Terbium Tb 175
Plutonium Pu 175
Neptunium Np 175
Lutetium Lu 175
Holmium Ho 175
Erbium Er 175
Americium Am 175
Silver Ag 160
Scandium Sc 160
Bismuth Bi 160
Zirconium Zr 155
Indium In 155
Hafnium Hf 155
Cadmium Cd 155
Mercury Hg 150
Magnesium Mg 150
Tin Sn 145
Tantalum Ta 145
Niobium Nb 145
Molybdenum Mo 145
Lithium Li 145
Astatine At 145
Antimony Sb 145
Palladium Pd 140
Manganese Mn 140
Iron Fe 140
Iodine I 140
Titanium Ti 140
Tellurium Te 140
Chromium Cr 140
Zinc Zn 135
Vanadium V 135
Tungsten W 135
Technetium Tc 135
Rhodium Rh 135
Rhenium Re 135
Platinum Pt 135
Nickel Ni 135
Iridium Ir 135
Gold Au 135
Curium Cm 135
Copper Cu 135
Cobalt Co 135
Radon Rn 134
Ruthenium Ru 130
Osmium Os 130
Gallium Ga 130
Germanium Ge 125
Aluminium Al 125
Xenon Xe 124
Selenium Se 115
Bromine Br 115
Arsenic As 115
Silicon Si 110
Beryllium Be 105
Krypton Kr 103
Sulfur S 100
Phosphorus P 100
Chlorine Cl 100
Boron B 85
Argon Ar 71
Carbon C 70
Nitrogen N 65
Oxygen O 60
Neon Ne 51
Fluorine F 50
Helium He 31
Hydrogen H 21