2
He
Helium
4,0026 u
Helium
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Periyot
1
Grup
18
Blok
s-Blok
Faz (STP)
Gas
Helium is the second lightest and second most abundant element in the universe. It is an inert noble gas used in cryogenics and as a lifting gas.
Görünüm: Colorless gas
Daha fazla Soy Gaz
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Frequently Asked Questions
What is Helium?
Helium (He) is a chemical element with atomic number 2. It is a gas at standard temperature and pressure, classified as a soy gaz.
What are the key properties of Helium?
Helium has an atomic mass of 4.0026 u, density of 0.0001785 g/cm³, melting point of -272.2°C, boiling point of -268.9°C.
What is the electron configuration of Helium?
The electron configuration of Helium is 1s2. It is in the s-block of the periodic table.
Who discovered Helium?
Helium was discovered by Pierre Janssen in 1868.