Mercury

Koushik 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08
Property Value
Atomic Number 80
Element Mercury
Symbol Hg
Atomic Mass 200.592 u
Number of Neutrons 120 (most common isotope, Mercury-202)
Number of Protons 80
Number of Electrons 80
Period 6
Group 12
Phase Liquid
Radioactive No
Natural Yes
Metal Yes
Nonmetal No
Metalloid No
Type Transition Metal
Atomic Radius 171 pm
Electronegativity 2.00 (Pauling scale)
First Ionization Energy 10.438 eV
Density 13.53 g/cm³
Melting Point −38.83 °C
Boiling Point 356.73 °C
Number of Isotopes 7 stable (Hg-196, Hg-198, Hg-199, Hg-200, Hg-201, Hg-202, Hg-204)
Discoverer Known since ancient times
Year Unknown
Specific Heat 0.140 J/g·K
Number of Shells 6
Number of Valence Electrons 12
Tags: Tutorials Chemistry tutorial step by step learn how to guide examples
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