Atomic Element Z = 45 • Transition Metal
Rhodium (Rh) — Atomic Data, Electron Shells & Reactions
Rhodium (symbol Rh, atomic number 45) has a standard atomic weight of 102.91 u and ground-state configuration [Kr] 4d8 5s1.
Atomic Number (Z)
45
IUPAC Symbol
Rh
Standard Atomic Weight
102.91 g/mol
Period / Group / Block
5 / 9 / d-block
Condensed Electron Config
[Kr] 4d8 5s1
Full Subshell Config
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d8 5s1
Principal Shell Occupancy
[2, 8, 18, 16, 1]
Pauling Electronegativity
2.28
First Ionization Energy
720 kJ/mol
Covalent Radius
142 pm
Melting Point
2237 K (1963.85 °C)
Boiling Point
3968 K (3694.85 °C)
Density
12.41 g/cm³
Oxidation States
+3
Rh (Z=45) — Valence shell highlighted in vermilion