What is mercury? The 5 most surprising mercury curiosities

What is mercury?

Chemistry Page
3 min readMay 12


Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum (/haɪˈdrɑːrdʒərəm/ hy-DRAR-jər-əm) from the Greek words hydor (water) and argyros (silver).

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A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard temperature and pressure, the only other element that is liquid under these conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.

mercury hg

Mercury is a naturally occurring element that is found in the Earth’s crust and in the atmosphere. It is also a byproduct of some industrial processes. Mercury is a highly toxic element that can cause a variety of health problems, including neurological damage, kidney damage, and birth defects.

Mercury is used in a variety of products, including thermometers, fluorescent light bulbs, and batteries. It is also used in some dental fillings and some cosmetics. The use of mercury in many products has been banned or restricted in many countries because of its toxicity.

Mercury is a hazardous material that should be handled with care. If you are exposed to mercury, it is important to seek medical attention immediately.

What is mercury used for?

Mercury is a heavy, silvery-white liquid metal that is used in a variety of applications. It is a good conductor of heat and electricity, and it is also very stable. Mercury is used in a variety of products, including:

Thermometers. Mercury thermometers are the most common type of thermometer. They work by expanding and contracting with temperature, which causes the mercury to rise or fall in the thermometer.

Fluorescent light bulbs. Mercury is used in fluorescent light bulbs to produce ultraviolet light, which then causes the phosphor in the tube to fluoresce, making visible light.

Barometers. Barometers measure atmospheric pressure. They work by using mercury to measure the height of a column of mercury, which is proportional to the atmospheric pressure.

Sphygmomanometers. Sphygmomanometers measure blood pressure. They work by using mercury to measure the pressure of blood in the arteries.

Dental amalgams. Dental amalgams are a type of filling that is made from mercury and other metals. They are used to fill cavities in teeth.

Mercury switches. Mercury switches are used in a variety of electronic devices, such as relays and switches. They work by using mercury to complete an electrical circuit.

Mercury is a toxic metal, and it can be harmful to human health if it is inhaled or ingested. It is important to handle mercury with care and to take precautions to avoid exposure.

The danger of methylmercury

Small aquatic organisms, such as algae and plankton, rapidly absorb methylmercury, a highly toxic mercury molecule. In turn, these organisms become food for fish and larger animals and move up the food chain, increasing the amounts of mercury, until finally reaching us humans.

Therefore, care must be taken, especially when consuming large fish, where the highest amounts of mercury are concentrated. This chemical element is especially toxic to young children and fetuses, whose brains are still developing.

5 curiosities of mercury

here are 5 curiosities of mercury element:

Mercury is the only metal that is liquid at room temperature.

Mercury is a very dense metal. It is 13.5 times denser than water, which means that it will sink in water.

Mercury is a very good conductor of heat and electricity. This is why it is used in thermometers and other electrical devices.

Mercury is a very toxic metal. It can cause damage to the brain, kidneys, and nervous system.

Mercury is a very volatile metal. This means that it evaporates easily. This can be a problem if mercury is spilled, as the vapors can be harmful to breathe.

Mercury is a very interesting and unique element. It is the only metal that is liquid at room temperature, and it is a very good conductor of heat and electricity. However, mercury is also a very toxic metal, so it is important to handle it with care.



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