Helium (from Ancient 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 …

May 17, 2014 · This handy element list includes each element's name, atomic number, and element symbol arranged by atomic number. Download or print the PDF.

Element Helium (He), Group 18, Atomic Number 2, s-block, Mass 4.003. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Helium (He) Helium is the 2nd element in the periodic table and has a symbol of He and atomic number of 2. It has an atomic weight of 4.00260 and a mass number of 4. Helium has two protons and two …

Feb 16, 2026 · Helium is a chemical element, an 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 …

While helium normally has a 0 valence, it seems to have a weak tendency to combine with certain other elements. Means of preparing helium difluoride have been studied, and species such as HeNe and …

Atomic Number of Helium is 2. Chemical symbol for Helium is He. Number of protons in Helium is 2. Atomic weight of Helium is 4.002602 u or g/mol. Melting point of Helium is -272,2 °C and its the …

Helium is a chemical element of the periodic table with chemical symbol He and atomic number 2 with an atomic weight of 4.0026 u and is classed as a noble gas.

Helium is the lightest noble gas with two electrons filling the 1s state to close the first shell. It is the second most abundant element in the universe, following hydrogen. The hydrogen-helium …

Chemical, physical and material properties and data of the chemical element Helium. Helium is the chemical element with the symbol He and atomic number 2. It is a colourless, odorless and tasteless …