Which Metal is Always have in Liquid Foam?
Mercury A heavy, Silvery D-block element, mercury is the only metallic element 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 cesium, Gallium, and Rubidium melt just above room temperature.
पारा एक भारी, चांदी डी-ब्लॉक तत्व, पारा एकमात्र धातु तत्व है जो तापमान और दबाव के लिए मानक स्थितियों पर तरल है; इन स्थितियों के तहत तरल पदार्थ का एकमात्र अन्य तत्व ब्रोमाइन है, हालांकि सीज़ियम, गैलियम और रूबिडियम जैसी धातुएं कमरे के तापमान से ऊपर पिघलती हैं।
What is Mercury?
Mercury is a chemical element with the (symbol Hg and atomic number 80) is a toxic shiny silvery metal, with a melting point of 200.59 K. It is commonly known as Quicksilver and was formerly named hydrargyrum. It is 13.6 times heavier than water. All these unique properties make mercury very useful for us. It is a good conductor of heat and electricity.Why is Mercury liquid in nature.?
Mercury is the only metal that is a liquid at normal temperatures and pressure. Basically, it's because mercury is bad at sharing. electrons, that is. Most metal atoms readily share valence electrons with other atoms.
Where is Mercury used.?
- Thermometers
- Barometers
- Manometers
- Sphygmomanometers
- Float Valves
- Mercury Switches
- Mercury Relays
- Fluorescent Lamps
And other devices, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor of alternatives such as Alcohol- or Galinstan-filled glass thermometers and thermistor- or infrared-based electronic instruments. Likewise, mechanical pressure gauges and electronic strain gauge sensors have replaced mercury sphygmomanometers.
Copyright source: Wikipedia
Why Mercury is Melt in Room Temperature.?
Some metals melt at lower temps than others. Tin becomes liquid at 231.8˚C (447.8˚F); at the other end of the spectrum, tungsten has the highest melting point of any metal: 3,422˚C(6,192˚F). Somewhere in the middle is mercury, which stays in a liquid state until its temperature drops to -40°.Copyright source: MIT engineering
