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#67 Holmium - rarity ZERO-KELVIN
1st ionization energy 6.022 eV 1.69%
appearance Silvery white metallic 5.08%
atomic mass 164.93 u 0.85%
atomic number 67 0.85%
atomic radius 216 picometers (van der Waals radius) 3.39%
boiling point 2873 K or 2600 °C or 4712 °F 0.85%
cas number 7440-60-0 0.85%
cas number of (cl2) - 99.15%
category Inner transition metals 23.73%
crystal structure HCP (Hexagonal close packed) 5.93%
density 8.8 g/cm3 0.85%
electronegativity 1.23 (Pauling scale) 1.69%
electronic configuration [Xe] 4f11 6s2 0.85%
electrons 67 0.85%
electrons arrangement 2, 8, 18, 29, 8, 2 0.85%
main isotopes 165Ho 0.85%
melting point 1734 K or 1461 °C or 2662 °F 0.85%
neutrons 98 0.85%
position Group: lanthanides, Period: 6, Block: f 5.08%
rarity ZERO-KELVIN 33.33%
state Solid 72.88%
sublimation point - 99.15%
symbol Ho 0.85%
valence electrons - 61.02%
who discovered Marc Delafontaine and Jacques Louis Soret (in 1878) 0.85%

Total Rarity Score: 1749.93

Rarity: #87/354

Holmium

Collection: Bohring Atoms