The element mercury was known to ancient Egypt and China. They used it thinking it would prolong

600 WordsApr 23, 20193 Pages
The element mercury was known to ancient Egypt and China. They used it thinking it would prolong their life. It is one of the metal which is liquid in normal pressure and temperature. Which helps us to understand many parameters which are dependent on pressure and temperature. It was recognized as an element by A. L. Lavoisier in the 18th century. Some of the properties of the element are as follows. Chemical name Mercury Chemical symbol Hg Atomic number 80 Average mass number 200.59 Electronic shell configuration * 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 Freezing point -38.83 degree celsius Boiling point 356.73 degree celsius Density 13.534 g·cm−3 Isotopes of Mercury …show more content…
It is also used in making switches and various other electronic apparatus. It is also used in make thermometers and barometers because of its greatest density of 13.534 gm cm to power of -3, it does not need a large tube to measure the pressure and thermometer. Like in a barometer if we use water then we would need a tube of 10.4m to measure the atmospheric temperature but if we use mercury we can measure the atmospheric temperature in a tube on only 0.76m. In a thermometers because of its large range of the boiling and melting points, it helps us to measure a large range of temperature. It also been used for making batteries. It can also be used to dental amalgams. Mercury is used to make dental amalgam because when it is mixed with amalgam powder, the compound it creates is soft enough to press on the tooth. it also becomes hard very fast which helps it to withstand the force of biting. But it has raised question on whether it is safe and U.S. Food and Drug Administration (FDA) evaluated the research and told it is safe for people above 6 years of age. **** One of the disadvantage of mercury is that it is toxic in nature due to which it has to be handled with care. Due to which it can result in death of people if they get mercury poisoning and if it is not treated in time. Due to mercury we are now able to make thermometers and barometers which has helped the people a lot. Due to it has helped us to find

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