What is unique about mercury Hg?
Mercury is the only metal that is a liquid at standard temperature and pressure. The only other liquid element under standard conditions is bromine (a halogen), although the metals rubidium, cesium, and gallium melt at a temperature just above room temperature. Mercury is a very rare element in the Earth’s crust.
What are 3 interesting facts about mercury element?
Here are a few important facts about mercury.
- Atomic number: 80.
- Atomic weight: 200.592.
- Melting point: 234.32 K (-38.83°C or -37.89°F)
- Boiling point: 629.88 K (356.73°C or 674.11°F)
- Density: 13.5336 grams per cubic centimeter.
- Phase at room temperature: Liquid.
- Element classification: Metal.
- Period number: 6.
Why is Hg used for mercury?
The symbol Hg that mercury is known by comes from its Greek name, hydrargyrum, which means “liquid silver” — to reflect its shiny surface.
What is dysprosium used for?
Dysprosium is used in nuclear reactors as a cermet, a composite material made of ceramic and sintered metal, to make laser materials, nuclear reactor control rods, as sources of infrared radiation for studying chemical reactions.
What is the atomic weight of Hg?
200.59 u
Mercury/Atomic mass
What are 3 uses for mercury?
Mercury is used in laboratories for making thermometers, barometers, diffusion pumps, and many other instruments. It is used for mercury switches and other electrical apparatus. It is used as an electrode in some types of electrolysis and for making batteries (mercury cells).
Who discovered mercury Hg?
Mercury or quicksilver has been known since ancient times. We do not know who discovered it. Mercury was known to the ancient Chinese, Egyptians and Hindus and has been found in Egyptian tombs dating back to about 1500 B.C.
How heavy is mercury vs water?
Mercury is a very dense, heavy, silver-white metal that is a liquid at room temperature. (For more information about mercury, click here.) Mercury has a density of 13.5 g/mL, which is about 13.5 times denser than water (1.0 g/mL), so a small amount of mercury like this feels unexpectedly heavy.
What does the atomic number Hg stand for in Mercury?
It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents.
What is the atomic weight of the element mercury?
Mercury is a shiny, silvery liquid metal, sometimes called quicksilver. It is a transition metal with atomic number 80 on the periodic table, atomic weight of 200.59, and the element symbol Hg. Here are some fast facts plus 10 interesting element facts about mercury.
What is the molecular weight of mercury hydrargyrum?
Mercury PubChem CID 23931 Synonyms 7439-97-6 Hg Mercury Hydrargyrum Quicksi Molecular Weight 200.59 Date s Modify 2021-07-03 Create 2004-09-16
How much does a flask of mercury weigh?
The commercial unit for handling mercury is the “flask,” which weighs 76 lb. The metal is obtained by heating cinnabar in a current of air and by condensing the vapor. It is a heavy, silvery-white metal; a rather poor conductor of heat, as compared with other metals, and a fair conductor of electricity.