what is hiliyam.......
Answers
Answer: In the perspective of quantum mechanics, helium is the second simplest atom to model, following the hydrogen atom. Helium is composed of two electrons in atomic orbitals surrounding a nucleus containing two protons and (usually) two neutrons.
Helium gas is used to inflate blimps, scientific balloons and party balloons. It is used as an inert shield for arc welding, to pressurize the fuel tanks of liquid fueled rockets and in supersonic windtunnels.
Explanation:
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a very light colourless gas that does not burn, often used to fill objects that float in the air (balloons)
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Wikipedia
Symbol: He
Atomic mass: 4.002602 u
Atomic number: 2
Electron configuration: 1s2
Boiling point: -268.9 °C
Discoverers: Pierre Janssen, Per Teodor Cleve, Norman Lockyer
In the perspective of quantum mechanics, helium is the second simplest atom to model, following the hydrogen atom. Helium is composed of two electrons in atomic orbitals surrounding a nucleus containing two protons and (usually) two neutrons
Helium gas is used to inflate blimps, scientific balloons and party balloons. It is used as an inert shield for arc welding, to pressurize the fuel tanks of liquid fueled rockets and in supersonic windtunnels.
On Earth there are key locations where concentrated helium can be harvested. The United States produces the majority of the world's helium supply at 78%. The rest of the world's helium is harvested in North Africa, The Middle East, and Russia.
There is no chemical way of manufacturing helium, and the supplies we have originated in the very slow radioactive alpha decay that occurs in rocks. It costs around 10,000 times more to extract helium from air than it does from rocks and natural gas reserves. Helium is the second-lightest element in the Universe.
Helium is used as a cooling medium for the Large Hadron Collider (LHC), and the superconducting magnets in MRI scanners and NMR spectrometers. It is also used to keep satellite instruments cool and was used to cool the liquid oxygen and hydrogen that powered the Apollo space vehicles.
pyarri behene hope it may help you...
wse helium h spelling...
hiliyam nhi.....
always stay happy......
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