Mercury (Hg)

Mercury is a chemical element with symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum. A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure.

Atomic Number

80

Atomic Mass

200.59 u

Category

transition metal

Phase

liquid

Density

13.534 g/cm³

Electron Shells

2, 8, 18, 32, 18, 2

Atomic Structure

Protons: 80 • Electrons: 80 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰

Discovery

Unknown