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单词
s-block element
释义
s-block element
s-block element
[
′es ‚bläk ‚el·ə·mənt
]
(chemistry)
A chemical element whose valence shell contains s-electrons only; found in groups 1 and 2 of the periodic table.
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ddawny
d day
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更新时间:2026/4/19 23:25:17