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#77 Iridium - rarity BROWNIAN-MANIACS
1st ionization energy 9.1 eV 0.85%
appearance Silvery white metallic appearance 1.69%
atomic mass 192.22 u 0.85%
atomic number 77 0.85%
atomic radius 202 picometers (van der Waals radius) 4.24%
boiling point 4403 K or 4130 °C or 7466 °F 0.85%
cas number 7439-88-5 0.85%
cas number of (cl2) - 99.15%
category Transition metals 25.42%
crystal structure FCC (Face centered cubic) 11.02%
density 22.56 g/cm3 0.85%
electronegativity 2.2 (Pauling scale) 5.08%
electronic configuration [Xe] 4f14 5d7 6s2 0.85%
electrons 77 0.85%
electrons arrangement 2, 8, 18, 32, 15, 2 0.85%
main isotopes 193Ir 0.85%
melting point 2719 K or 2446 °C or 4435 °F 0.85%
neutrons 115 1.69%
position Group: 9, Period: 6, Block: d 0.85%
rarity BROWNIAN-MANIACS 33.33%
state Solid 72.88%
sublimation point - 99.15%
symbol Ir 0.85%
valence electrons - 61.02%
who discovered Smithson Tennant in 1803 0.85%

Total Rarity Score: 1834.3

Rarity: #78/354

Iridium

Collection: Bohring Atoms