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Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
25 Οκτ 2024 · helium (He), chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element (only hydrogen is lighter), helium is a colourless, odourless, and tasteless gas that becomes liquid at −268.9 °C (−452 °F).
Helium is a colourless, odourless and tasteless gas that is the second lightest element and the first noble gas in the periodic table. It has a low boiling and melting point, and is used for balloons, welding, cryogenics, MRI and more.
History. Helium Identification. Properties and Characteristics of Helium. Atomic Data of Helium (Element 2) What is Helium Used for. Helium Toxicity and Health Effects. Interesting Facts. Cost of Helium. What is Helium.
Introduction. - Helium is the second lightest and second most abundant element in the observable universe. - It plays a vital role in various industries including healthcare, aerospace, and technology. - Helium is a colorless, odorless, and tasteless gas that belongs to the noble gases group in the periodic table. Historical Background.
Helium is a chemical element and a colorless, odorless, tasteless, inert gas. It has the smallest atomic radius of any element and the second-lowest atomic weight. It is lighter than air. Most people know that helium is used as a lifting gas in blimps and party balloons, but they can't name another way in which helium is used.
11 Μαρ 2021 · Helium is a noble gas that places in group-18 and period-1 in the periodic table. It is the only s-block element that is placed along with p-block elements. Abundance and Occurrence. Helium (23 percent) is the second most abundant element after hydrogen (76 percent).
