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Physical Properties of Hydrogen
Hydrogen is a colorless and odorless gas. Its quality is the lightest, and its density is the smallest among all gases. Under normal conditions, it is difficult to dissolve in water, only a little soluble. It has high diffusivity and can travel quickly in space. The melting point is extremely low, about -259.16 ° C, and the boiling point is also low, reaching -252.87 ° C. It is colorless and transparent, and can be seen as void and invisible. It has excellent thermal conductivity, which is better than other gases. Although odorless and tasteless, it is active in chemical reactions and often participates in various changes. It is also an essential element in the field of chemistry.
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