80
Hg
200.59
Mercury (Hg)
Element 80 · Period 6 · Group 12
transition-metal
liquid at room temp
d-block
About Mercury
Only metal liquid at room temperature. Used in thermometers, barometers, and fluorescent lamps.
Physical Properties
Atomic Mass
200.59 u
State at 25°C
Liquid
Melting Point
-38.83 °C
Boiling Point
356.73 °C
Density
13.534 g/cm³
Magnetism
Diamagnetic
Atomic Properties
Electron Configuration
[Xe] 4f¹⁴ 5d¹⁰ 6s²
Electron Shells
2, 8, 18, 32, 18, 2
Electronegativity
2.0
Atomic Radius
171 pm
Ionization Energy
1007 kJ/mol
Oxidation States
+1, +2
Discovery & History
Discovered By
Ancient
Discovery Year
Ancient
Named By
Ancient
Name origin: Planet Mercury; Symbol from Latin: hydrargyrum
Frequently Asked Questions
- Is Mercury a metal, nonmetal, or metalloid?
- Mercury is classified as a transition-metal.
- What state is Mercury in at room temperature?
- Mercury is a liquid at standard room temperature (25°C).
- What is the atomic mass of Mercury?
- Mercury has an atomic mass of 200.59 atomic mass units (u).
- Who discovered Mercury?
- Mercury was discovered by Ancient.
- Where is Mercury on the periodic table?
- Mercury is element number 80, located in period 6 and group 12.