RhZ =  45

From the Greek "rhodon", meaning "rose"
(AM) Atomic Mass 102.9055  amu    Oxidation States +3, +4
   (BP) Boiling Point 3727  °C    (MP) Melting Point 1966  °C
   (ρ) Density 12.44  g/cm3    Crystal Structure Face Centered Cubic
   ( χ ) Electronegativity 2.2    (AR) Atomic Radius 1.35  Å
   Physical State Solid (C) Heat Capacity 0.243  J/g °C
Electronic-Config [Kr]  4d8  5s1     (I1) First Ionization E 719.78  kJ/mol
   (ΔHvap) Heat of Vaporization 494  kJ/mol     (ΔHfus) Heat of Fusion 26.59  kJ/mol
   Year of Discovery 1803    Location of Discovery United Kingdom
(E°) Standard Potential None
Stable isotopes  103Rh
Discovered/Synthesized by William Hyde Wollaston
Natural Source Isolated from the native elements or alloys of the various elements or arsenides
Common Uses Labware, reflectors, electric contacts, thermocouples, catalyst, pollution control
Other Info One of the rarest precious metals
Used in catalytic converters
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