Content-Type image/png
Content-Length 6.34 kB
Size 512x512
#37 Rubidium - rarity ZERO-KELVIN
1st ionization energy 4.177 eV 0.85%
appearance Grey white 0.85%
atomic mass 85.468 u 0.85%
atomic number 37 0.85%
atomic radius 303 picometers (van der Waals radius) 0.85%
boiling point 961 K or 688 °C or 1270 °F 0.85%
cas number 7440-17-7 0.85%
cas number of (cl2) - 99.15%
category Alkali metals 5.08%
crystal structure BCC (Body Centered Cubic) 4.24%
density 1.53 g/cm3 0.85%
electronegativity 0.82 (Pauling scale) 1.69%
electronic configuration [Kr] 5s1 0.85%
electrons 37 0.85%
electrons arrangement 2, 8, 18, 8, 1 0.85%
main isotopes 85Rb, 87Rb 0.85%
melting point 312.4 K or 39.3 °C or 102.7 °F 0.85%
neutrons 48 1.69%
position Group: 1, Period: 5, Block: s 0.85%
rarity ZERO-KELVIN 33.33%
state Solid 72.88%
sublimation point - 99.15%
symbol Rb 0.85%
valence electrons 1 5.93%
who discovered Robert Bunsen and Gustav Kirchhoff (in 1861) 0.85%

Total Rarity Score: 2072.51

Rarity: #30/354

Rubidium

Collection: Bohring Atoms