Chemical Elements.com - Mercury (Hg)

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Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Mercury
Symbol: Hg
Atomic Number: 80
Atomic Mass: 200.59 amu
Melting Point: -38.87 °C (234.28 K, -37.966 °F)
Boiling Point: 356.58 °C (629.73 K, 673.844 °F)
Number of Protons/Electrons: 80
Number of Neutrons: 121
Classification: Transition Metal
Crystal Structure: Rhombohedral
Density @ 293 K: 13.456 g/cm³
Color: Silver

Atomic Structure

Number of Energy Levels: 6

First Energy Level:

Second Energy Level:

Third Energy Level:

Fourth Energy Level:

Fifth Energy Level:

Sixth Energy Level:

Isotopes

Isotope	Half Life
Hg-194	520.0 years
Hg-196	Stable
Hg-197	2.7 days
Hg-197m	23.8 hours
Hg-198	Stable
Hg-199	Stable
Hg-200	Stable
Hg-201	Stable
Hg-202	Stable
Hg-203	46.6 days
Hg-204	Stable
Hg-206	8.2 minutes

Facts

Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: After the planet Mercury
Symbol Origin: From the Latin word hydrargyrum (liquid silver)
Uses: thermometers, barometers, fluorescent lamps, batteries
Obtained From: cinnabar ore

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