The name for the element comes from the Greek god of the Sun, Helios. Evidence of helium's existence came from the observation of a yellow spectral line from the sun.Though helium is non-toxic, breathing it can result in asphyxiation due to oxygen deprivation. Although many people think inhaling helium makes a voice sound higher, it doesn't actually alter the pitch. Inhaling helium temporarily changes the sound of a person's voice. ![]() In other words, helium is found as single atoms of the element. Helium is monatomic under standard conditions.Density (g cm3) Density is the mass of a substance that would fill 1 cm3 at room temperature. Sublimation The transition of a substance directly from the solid to the gas phase without passing through a liquid phase. ![]() Helium is the second least reactive noble gas (after neon). It is considered the real gas that most closely approximates the behavior of an ideal gas. Boiling point The temperature at which the liquidgas phase change occurs.Most helium is obtained by extracting it from natural gas. Its uses include helium party balloons, as a protective inert atmosphere for chemistry storage and reactions, and for cooling superconducting magnets for NMR spectrometers and MRI machines.Under high pressure, disodium helide (HeNa 2), the clathrate-like titanate La 2/3-xLi 3xTiO 3He, the silicate crystobalite He II (SiO 2He), dihelium arsenolite (AsO 6♲He), and NeHe 2 may exist. In order to bond it to another element, it would need to be ionized or pressurized. Helium is colorless, odorless, tasteless, non-toxic, and inert. Of all the elements, helium is the least reactive, so it does not form compounds under ordinary conditions.Some scientists are concerned we might one day run out of helium or at least make it prohibitively expensive to isolate. Helium is the second-most abundant element in the universe (after hydrogen), though it is much less common on Earth. On Earth, the element is considered a nonrenewable resource. Helium does not form compounds with other elements, while the free atom is light enough to escape Earth's gravity and bleed out through the atmosphere.This is because the most common isotope of hydrogen has one proton and no neutrons, while each helium atom typically has two neutrons as well as two protons. Even though hydrogen typically exists as a diatomic gas, consisting of two atoms bonded together, a single atom of helium has a higher density value. Helium is the second-lightest element. The lightest element or one with the lowest density is hydrogen.Helium has the lowest melting point and boiling point of the elements, so it only exists as a gas, except under extreme conditions. At normal pressure, helium is a liquid at absolute zero. It must be pressurized to become solid.It is energetically favorable for each helium atom to have 2 electrons, which gives it a stable electron shell. The atomic number of helium is 2, meaning each atom of helium has two protons. The most abundant isotope of the element has 2 neutrons.It is essential for students to be well versed in its chemical properties. Helium is a very vital gas in the whole universe and finds numerous applications in several fields. It is often mashed with hydrogen to produce water and Helium gas or with carbon to produce carbon dioxide. Helium, in general, due to its inert nature, does not form any chemical compounds in normal conditions but under special conditions of pressure and temperature, helium forms certain compounds like Helium oxide. The helium oxide formula can be written as HeO. Helium is a tasteless, odourless, and colourless gas. The Molecular weight of Helium is 4.003 g/mol. The properties of Helium gas is as follows: Liquid helium does not solidify at normal pressure irrespective of the temperature. However, the Helium gas formula He 2 holds true at times as in the liquid phase it has some Van Der-Waal force between them becomes dominant. The Helium Formula is not written as He 2 as per the Molecular Orbital Theory. When exposed to the electric field, it displays a red-orange colour. The structure of helium gas is a closed-packed crystal structure. The molecular formula of helium gas is He. Helium is the second lightest and second most abundant element in the whole universe after hydrogen. ![]() It was the very first gas that was detected in the sun and has varied uses in various fields. This monatomic gas is colourless, odourless, and tasteless. It is the first noble gas in the periodic table, that is, it is an inert gas. This element is symbolized as He which is also the Helium gas chemical formula. Helium is an element that is non-toxic and non-combustible.
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