Elements 3 is a nonmetal with one valence electron.
元素3是带-1价的非金属元素.
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The acceptor atoms are required to have one less valence electron than the semiconductor.
受主原子必须比半导体元素少一价电子.
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Hole - Similar to a positive charge, this is caused by the absence of a valence electron.
空穴 - 和正电荷类似, 是由缺少价电子引起的.
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