Question:

What is HD?

What is HD?

Answer:

HD should be a special element, solid H2 is the molecular crystal. At room temperature, HD for the gas, does not belong to the crystal.
Yes, as long as the same element is composed
Elemental matter is composed of the same element of pure matter. HD is a pure chemical composed of H2 and D2 chemical reaction, and H and D are isotopes, so meet the conditions of elemental.

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