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单词 s-block
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Examples ofs-block

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Thiss-blockorganometallic compound adopts an oligomeric structure both in solution and in the solid state.
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The first two, sodium and magnesium, are members of thes-blockof the periodic table, while the others are members of the p-block.
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Main group elements include elements (except hydrogen) in groups 1 and 2 (s-block), and groups 13 to 18 (p-block).
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This group lies in thes-blockof the periodic table as all alkaline earth metals have their outermost electron in an s-orbital.
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Thes-blockcomprises the first two groups (alkali metals and alkaline earth metals) as well as hydrogen and helium.
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Typically, the stable electron configuration is one of the noble gases for elements in thes-blockand the p-block, and particular stable electron configurations for d-block and f-block elements.
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The table can also be deconstructed into four rectangular blocks: thes-blockto the left, the p-block to the right, the d-block in the middle, and the f-block below that.
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Their behaviour is so different from the others-blockelements that there is considerable disagreement over where these two elements should be placed in the periodic table.
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Thes-blockand p-block together are usually considered as the main group elements, the d-block corresponds to the transition metals, and the f-block are the lanthanides and the actinides.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2024/12/27 18:57:18