Helium ndi gasi osowa ndi mankhwala chilinganizo Iye, colorless, fungo, mpweya wopanda kukoma, osayaka, sanali poizoni, ndi kutentha kwambiri -272,8 digiri Celsius ndi kuthamanga kwambiri 229 kPa. Pazamankhwala, helium itha kugwiritsidwa ntchito popanga matabwa amphamvu kwambiri azachipatala, hel ...
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