Mercury (element)

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Mercury
200.59(2)



  Hg
80
1s22s22p63s23p63d104s24p6 4d105s25p64f145d106s2 12,6,d
[ ? ] Transition metal:
Properties:
Liquid at room temperature
Uses:
Thermometers
Hazard:
Toxic


Mercury is a chemical element, having the chemical symbol Hg. Its atomic number (the number of protons) is 80. It has a standard atomic weight of 200.59 g•mol −1 and is a liquid in its elemental form at room temperature.

Platinum is considered a member of the "Transition metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 356.73 °C and a melting point of −38.83 °C.