



Helium gas
vonRegina Ciccone•~1min Lesezeit
Genres & Atmosphäre
Helium is a chemical element with the symbol He and it has an atomic mass of 4 u, with atomic number 2. At room temperature, helium is in the gaseous state.
Inhaltsangabe
Helium is a chemical element with the symbol He and it has an atomic mass of 4 u, with atomic number 2. At room temperature, helium is in the gaseous state.
LAbgeschlossene Geschichte~1min Lesezeit
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