Rhodium
Symbol
Rh
Atomic Number
45
Atomic Weight
102.9055
Element Classification
Discovered By
William Wollaston
Discovery Date
1803 (England)
Name Origin
Greek: rhodon (rose). Its salts give a rosy solution.
Density(g/cc)
12.41
Melting Point
2239
Boiling Point(K)
4000
Appearance
Silvery white, hard metal
Atomic Radius(pm)
134
Atomic Volume(cc/mol)
8.3
Covalent Radius(pm)
125
Ionic Radius
68 (+3e)
Specific Heat
0.244
Fusion Heat
21.8
Evaporation Heat(kj/mol)
494
Thermal Conductivity(@25°C W/m K)
150
Debye Temperature
n/a
Pauling Negativity Number
2.28
First Ionizing Energy(kj/mol)
719.5
Oxidation States
5, 4, 3, 2, 1, 0
Electronic Configuration
[Kr] 4d8 5s1
Lattice Structure
Face-Centered Cubic(FCC)
Lattice Constant
3.800
Lattice C/A Ratio
n/a
