He
2 noble gas Generado con IA
Helio
Symbol He
Atomic Mass 4.0026022
Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among all the elements.
Properties
- Phase: Gas
- Density: 0.1786 g/cm³
- Melting Point: 0.95 K
- Boiling Point: 4.222 K