Yes. Mercury is a metal, classified as a transition metal on the periodic table.

How many protons does mercury have?

Mercury has 80 protons. Its atomic number is 80, which is also the number of electrons in a neutral atom of mercury.

What group and period is mercury in?

Mercury is in group 12 and period 6 of the periodic table, in the d-block.

What is the atomic mass of mercury?

The atomic mass of mercury is 200.59 u (unified atomic mass units).

Element 80

Mercury (Hg)

Transition metal · Period 6 · Group 12 · d-block

Mercury (Hg) is element 80 of the periodic table, a transition metal in period 6, group 12 (d-block) with an atomic mass of 200.59 and is a liquid at standard conditions.

At a glance

Atomic number: 80
Symbol: Hg
Atomic mass: 200.59 u
Category: Transition metals
Period: 6
Group: 12
Block: d-block
Phase at STP: liquid

Electron structure

Electron configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2
Shorthand configuration: [Xe] 4f14 5d10 6s2
Electrons per shell: 2, 8, 18, 32, 18, 2
Oxidation states: -2, +1, +2

Physical properties

Melting point: 234.32 K (-38.83 °C)
Boiling point: 629.88 K (356.73 °C)
Density: 13.5336 g/cm³
Phase: liquid

Atomic properties

Electronegativity (Pauling): 2
Atomic radius: 171 pm
Covalent radius: 132 pm
Van der Waals radius: 155 pm
First ionization energy: 1007 kJ/mol
Electron affinity: 0 kJ/mol

Notable isotopes

Notable isotopes of Mercury: mass number, atomic mass, natural abundance, and stability.
Isotope	Mass	Abundance	Stability
Hg-202	201.97064	29.86%	Stable

Common uses

Thermometers
Fluorescent lamps
Dental fillings
Batteries

Discovery

Discovered by: Known since antiquity
Country: Unknown

Frequently asked questions

Is mercury a metal?: Yes. Mercury is a metal, classified as a transition metal on the periodic table.
How many protons does mercury have?: Mercury has 80 protons. Its atomic number is 80, which is also the number of electrons in a neutral atom of mercury.
What group and period is mercury in?: Mercury is in group 12 and period 6 of the periodic table, in the d-block.
What is the atomic mass of mercury?: The atomic mass of mercury is 200.59 u (unified atomic mass units).

Keep exploring

Mercury's row is on the printable element property sheet, and its tile is on the periodic table wall chart - the same numbers as above, laid out for A4 or A3 paper.