![]() ![]() Under standard conditions, helium is a monatomic gas.It is considered to be the real gas that behaves the most closely to the behaviour of an ideal gas in terms of temperature and pressure. Helium is the second least reactive noble gas in terms of reactivity (after neon).Helium is used in a variety of applications, including party balloons, as a protective inert atmosphere for chemistry storage and reactions, and to cool superconducting magnets used in NMR spectrometers and magnetic resonance imaging machines. The majority of helium is obtained through the extraction of the element from natural gas.The disodium helide (HeNa 2 ), the silica crystobalite He II (SiO 2 He), dihelium arsenolite (AsO 6 -2He), and the neon helide (NeHe 2 ) are all possible under high pressure. It would have to be ionised or pressurised in order to form a bond with another element, however. Helium is the least reactive of all the elements, and as a result, it does not combine with other elements to form compounds under normal circumstances. ![]() Helium is colourless, odourless, tasteless, non-toxic, and inert.Some scientists are concerned that we will run out of helium in the near future, or that it will become prohibitively expensive to extract. Helium does not combine with other elements to form compounds, and the free atom is light enough to escape the gravitational pull of the Earth and bleed out through the atmosphere. The element is regarded as a nonrenewable resource on the planet Earth. In the universe, helium is the second most abundant element (behind hydrogen) despite the fact that it is much less common on the planet.This is due to the fact that the most common isotope of hydrogen contains only one proton and no neutrons, whereas each helium atom contains two neutrons in addition to two protons. Despite the fact that hydrogen is typically found as a diatomic gas, consisting of two atoms that are bonded together, a single atom of helium has a higher density value than a single atom of hydrogen. Hydrogen is the lightest element, as well as the element with the lowest density. Helium is the second lightest element after hydrogen.It needs to be pressurised in order to solidify. Helium is a liquid at absolute zero pressure when under normal pressure. Helium has the lowest melting and boiling points of all the elements, and as a result, it can only exist as a gas except in extremely extreme circumstances.It is more energy efficient for each helium atom to have two electrons, which results in a more stable electron shell for the atom. The element’s most abundant isotope has two neutrons, making it the most abundant isotope. Helium has an atomic number of 2, which means that each atom of helium contains two protons.Helium is the only element that cannot be solidified by sufficient cooling under normal atmospheric pressure it requires the application of 25 atmospheres of pressure at a temperature of 1 K (272 degrees Celsius or 458 degrees Fahrenheit) in order to convert it to its solid state. Helium has lower boiling and freezing points than any other known substance, making it the most energy-dense element. Helium is the second lightest element (only hydrogen is lighter), and it is a colourless, odourless, and tasteless gas that turns into a liquid at a temperature of 268.9 degrees Celsius (452 degrees Fahrenheit). Large amounts of new helium are being created by nuclear fusion of hydrogen in stars.Helium (He) is a chemical element and inert gas belonging to the Periodic Table’s Group 18 (noble gases). Most helium in the universe is helium-4, the vast majority of which was formed during the Big Bang. This helium-4 binding energy also accounts for why it is a product of both nuclear fusion and radioactive decay. This is due to the very high nuclear binding energy (per nucleon) of helium-4 with respect to the next three elements after helium. Its abundance is similar to this figure in the Sun and in Jupiter. After hydrogen, helium is the second lightest and second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its boiling point is the lowest among all the elements. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. 'Sun') is a chemical element with symbol He and atomic number 2. ![]()
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