what is meaning of mercury
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Mercury is a metal it is only metal that is liquid at room temperature
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Facts About Mercury the Planet
- Mercury is composed of an iron core which is at least partially molten. That is surrounded by a mantle, which is rocky, and a crust.
- The surface of Mercury resembles Earth’s moon because it has a layer of silicates which are tiny particles.
- There is no gravity to slow down meteoroids and no friction to burn them up, so the surface of Mercury is pocketed by craters.
- The largest crater on Mercury is called Caloris Basin and is 800 miles in diameter.
- There is ice made of water at Mercury’s poles in deep craters.
- Mercury has no moons or rings.
Facts About Mercury As a Metal
- Its symbol is Hg, from the Latin hydrargyrum, meaning liquid silver.
- Its boiling point is over 356 degrees Celsius, and it freezes at around minus 38 degrees Celsius
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- It does not conduct heat very well, but is a fairly good conductor of electricity.
- It has high surface tension and breaks up when poured or spilled onto a flat area, forming small beads which move around quickly.
- It is used in thermometers because its expansion when heated is fairly constant, and in barometers because of its density.
- It can be easily absorbed into your body through the skin, lungs, or by ingesting it
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