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#88 Radium - rarity SPINNIN'IN
1st ionization energy 5.27 eV 0.85%
appearance Silvery-white metallic appearance 2.54%
atomic mass 226 u 0.85%
atomic number 88 0.85%
atomic radius 238 picometers (van der Waals radius) 0.85%
boiling point 2010 K or 1737 °C or 3159 °F 0.85%
cas number 7440-14-4 0.85%
cas number of (cl2) - 99.15%
category Alkaline earth metals 5.08%
crystal structure BCC (body centered cubic) 5.93%
density 5 g/cm3 0.85%
electronegativity 0.9 (Pauling scale) 0.85%
electronic configuration [Rn] 7s2 0.85%
electrons 88 0.85%
electrons arrangement 2, 8, 18, 32, 18, 8, 2 0.85%
main isotopes 226Ra 0.85%
melting point 973 K or 700 °C or 1292 °F 0.85%
neutrons 138 1.69%
position Group: 2, Period: 7, Block: s 0.85%
rarity SPINNIN'IN 33.33%
state Solid 72.88%
sublimation point - 99.15%
symbol Ra 0.85%
valence electrons 2 7.63%
who discovered Pierre Curie and Marie Curie (in 1898) 1.69%

Total Rarity Score: 1983.36

Rarity: #49/354

Radium

Collection: Bohring Atoms