Helium (He) - Physical & Chemical Properties, Uses, Isotopes
Helium (He) - Physical & Chemical Properties, Uses, Isotopes
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5.6K views · 21 reactions | Am 18. August 1868 wurden die ersten Hinweise auf das Element Helium entdeckt. 邏‍ Heute wird es u. a. in der Luftfahrt und der Medizin eingesetzt. Und dann wäre da ja noch die Nummer mit der Stimme … aber Vorsicht – ist nicht ganz ungefährlich.  | WhatsApp SIM | Facebook
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