2005/01/01 | 镓[Gallium]
类别(℃〖化学〗) | 评论(0) | 阅读(25) | 发表于 12:40
An element which has an unusual phase diagram in that like Bi, Sb, and water, Ga expands upon solidification. In addition, gallium (which has atomic number 31) has a valence of , and is useful in electronics as part of the compound gallium-arsenide (GaAs). Devices made of GaAs generally have faster switching speeds than those made of doped silicon.
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