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Helium is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. It is the second-lightest and second most abundant element in the universe, after hydrogen. It is present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined.
Helium is a colourless, odourless and unreactive gas that is the second most abundant in the universe and the third most abundant in the sun. It is used as a cooling medium for various devices, such as the Large Hadron Collider and MRI scanners, and as a filling for balloons, balloons and airships.
20 de oct. de 2023 · Helium, chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element, helium is a colorless, odorless, and tasteless gas that becomes liquid at -268.9 degrees Celsius. The boiling and freezing points of helium are lower than those of any other known substance.
Download High Resolution PDF. The second most abundant element in the universe, helium is scarce on Earth. A product of nuclear fusion and radioactive decay, it is the lightest noble gas, colorless, odorless, and inert with a low boiling point.
El helio (del griego: ἥλιος [ hḗlios] ‘ Sol ’, por haberse inferido en 1868 su existencia en la atmósfera solar) 2 es el elemento químico de número atómico 2, símbolo He y peso atómico estándar de 4,002602.