Mercury (Hg)
Symbol
Hg
Atomic Number
80
Atomic Weight
200.59
Element Classification
Discovered By
Known to the ancients.
Discovery Date
n/a (Unknown)
Name Origin
The Roman god Mercury; symbol from Latin: hydrargyrus (liquid silver).
Density (g/cc)
13.546 (@ +20°C)
Melting Point (K)
234.28
Boiling Point (K)
629.73
Appearance
Heavy, silver-white metal that is in its liquid state at
Atomic Radius (pm)
157
Atomic Volume (cc/mol)
14.8
Covalent Radius (pm)
149
Ionic Radius
110 (+2e) 127 (+1e)
Specific Heat
0.138
Fusion Heat (kJ/mol)
2.295
Evaporation Heat (kJ/mol)
58.5
Thermal Conductivity (@25°C W/m K)
8.3
Debye Temperature (K)
100.00
Pauling Negativity Number
2.00
First Ionizing Energy (kJ/mol)
1006.0
Oxidation States
2, 1
Electronic Configuration
[Xe] 4f14 5d10 6s2
Lattice Structure
Rhombohedral(RHL)
Lattice Constant
2.990
Lattice C/A Ratio
n/a