Mercury is a poor conductor of heat, but a fair conductor of electricity. Mercury has a unique electron configuration which strongly resists removal of an electron, making it behave similarly to noble gas elements. As a result, mercury forms weak bonds and is a liquid at room temperature.
Why mercury is liquid at room temperature class 10?
As stated in the question mercury is the only metal which is liquid at room temperature. It is because mercury is very bad at sharing its valence electrons . Most of the metals are hard and have a high melting point. This is because they readily share their valence electrons with the neighbouring atom.
Why is liquid at room temperature?
Water at room temperature is liquid due to the presence of hydrogen bond . These bonds hold water molecules together for small fractions of a second. Water molecules move continuously. ... This property makes the water liquid at room temperature.
Is mercury a liquid at room temperature?
Mercury is both a liquid at room temperature (as it has a very low melting point of -39C) and a metal.
Why mercury is present in liquid state?
The electrons in mercury atom are bound more tightly than usual to the nucleus. The s electrons are moving so fast and close to the nucleus. Mercury is reluctant to form bonds and shows low melting point. So Hg exists in liquid state unlike other D-block elements.
What is the room temp of mercury?
Despite being the only metal that is liquid at room temperature, mercury has the smallest liquid range of any metal. It becomes a solid at -38.83°C and a gas at 356.7°C.
What is the chemical symbol for mercury?
The chemical symbol for Mercury is Hg . Mercury was named after the Roman god. Its chemical symbol (Hg) comes from hydrargyrum from the Greek word hydrargyros meaning ‘water’ and ‘silver’.
What metal is liquid at room temp?
Mercury is the only metal that is liquid at normal temperatures.
Which of following is liquid at room temperature?
Phosphorus, Chlorine and Bromine are non-metal and only Mercury is a metal in this case. Mercury exists as liquid at room temperature, but bromine is a non metal which is liquid at room temperature.
How do you know if a substance is liquid at room temperature?
If the normal melting point of a substance is below room temperature , the substance is a liquid at room temperature. ... If both the normal melting point and the normal boiling point are above room temperature, the substance is a solid.
Can you touch mercury?
Mercury is a very toxic or poisonous substance that people can be exposed to in several ways. If it is swallowed, like from a broken thermometer, it mostly passes through your body and very little is absorbed. If you touch it, a small amount may pass through your skin , but not usually enough to harm you.
Which metal is liquid at room temperature other than mercury?
Mercury is a dense, silvery d-block element. It is the only metal that is liquid at standard conditions for temperature and pressure. The only other element that is liquid under these conditions is bromine , though metals such as caesium, gallium, and rubidium melt just above room temperature.
Is the only non metal which is liquid at room temperature?
One non-metal, bromine , is a liquid at room temperature.
Why is mercury toxic?
Health effects of mercury exposure
The inhalation of mercury vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fatal. The inorganic salts of mercury are corrosive to the skin, eyes and gastrointestinal tract , and may induce kidney toxicity if ingested.
Is mercury flammable?
Mercury is non-combustible . The agent itself does not burn, but it may react upon heating to produce corrosive and/or toxic fumes.
Is mercury magnetic?
It is the only rocky planet that has a global magnetic field like Earth . ... Measurements made by Mariner 10 in 1974/75 showed that Mercury also has a magnetic field. According to the standard models, the dynamo effect in its metal core should generate similar field strengths to those on Earth.
