rhodium

Symbol: Rh
Atomic number: 45
Atomic weight: 102.90550
Group: 9
Group name: Precious metal or Platinum group metal
Period: 5
Block: d
CAS ID: 7440-16-6
Shell structure: 2.8.18.16.1
Electron configuration: [Kr].4d85s1
State: |standardstate|
Melting point: 2237 [or 1964 °C (3567 °F)]
Boiling point: 3968 [or 3695 °C (6683 °F)]
Ionization energy/kJ per mol: 719.7
Common oxidation states: 3
Pauling electronegativity: 2.28