Elements
80

Hg

Mercury

Pronounced

MER-kyoo-ri

Mercury (Hg) is a liquid silver coloured metal that has the atomic number 80 in the periodic table. It is a Transition metal in Group 12. It has the symbol Hg.

Mercury was known to humans as far back as the Ancient Egyptians and its name originates from the alchemy movement after the planet Mercury. It’s symbol Hg derives from the Latin Hydragyrum which translates as liquid silver. It is a toxic metal and was used as a medicine for many years. Mercury is good at conducting electricity and is use in electrical switches and also can be used in nuclear reactors. It is also used in the production of chlorine and gold. Mercury exists as an ore in the earth’s crust in the ore Cinnabar. It is a liquid metal at room temperature with a melting point of -38°c and a boiling point of 356°c.

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FAQ's

What is the Melting Point for Mercury?

Mercury has a Melting Point of -38.87°C, meaning at -38.87°C it will turn to a liquid.

What is the Boiling Point for Mercury?

Mercury has a Boiling Point of 356.58°C, meaning at 356.58°C it will turn to a Gas.

What is the Electronegativity of Mercury?

Mercury's Electronegativty is 2. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

Discovered by

Known to the ancients.

Discovery date

265 BC

What is the Heat of Vaporization of Mercury?

Mercury has a Heat of Vaporization of 59.229 kJ/mol.

Uses

Used in thermometers, barometers, and batteries. Also used in electrical switches and mercury-vapor lighting products.

Sources

Virtually all mercury comes from cinnabar or mercury sulfide (HgS). Some sources of red cinnabar are so rich in mercury that droplets of elemental mercury can be found in random samples.

About the author

Nathan M

Author

Nathan has a degree in BSc Biomedical Chemistry at Warwick University and a degree in PGCE Science at Wolverhampton University, UK. Nathan's subject matter ranges from general chemistry and organic chemistry. Nathan also created the curriculum on Breaking Atom in the course page.

Citation

"Mercury" Published on Dec 30, 2019. https://breakingatom.com/elements/mercury
80
Protons
80
Electrons
121
Neutrons

Hg

Element Symbol
Hg
Atomic Weight
200.592
Atomic Number
80
State
Liquid
Melting Point
Unknown
-38.87
°C
Boiling Point
356.58
Unknown
°C
Heat of Vaporization
59.229
Unknown
kJ/mol
Crystal Structure
Rhombohedral
Thermoconductivity
0.0834
Unknown
W/cmK
Shells
2,8,18,32,18,2
Group
Transition Metal
Period
6
Block
D Block
Orbitals
[Xe] 4f14 5d10 6s2
Coefficient of Thermal Expansion
49 10^-6 K^-1
Covalent Radius
1.49 Å
Density at 293K
13.546 g/cm³
Electrical Conductivity
0.0104 10^6/cm ohm
First Ionization Potential
10.4375 V
Second Ionization Potential
18.759 V
Third Ionization Potential
34.202 V
Ionic Radius
1.02 (+2) Å
Oxydation States
(2),1
Lattice Parameter
3.005 Å
Lattice Parameter 2
4.822 Å
Lattice Parameter 3
a=57° 14'
Orbital configuration
2,8,18,32,18,2

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Explore Other Transition Metals

Transition metal is any of various chemical elements that have valence electrons (electrons that can participate in the formation of chemical bond) in two shells instead of only one. They form group 3 (IIIb) through group 12 (IIb).
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