File:Periodic_table_blocks_spdf_(32_column).svg · Wikimedia Commons · See Wikimedia Commons
元素分区
Sign in to savea set of elements in the periodic table of elements, defined by shape of an orbital—s, p, d, or f—where the valence electron lies
A block is a group of elements on the periodic table organized by the shape of the outermost electron's orbital around the nucleus. This organization matters because elements in the same block tend to have similar chemical properties and behavior, making it easier to predict how they'll react with other elements.
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Article · 中文
元素周期表分区（blocks of the periodic table）、周期表分区 或 元素分区，是根据元素外层价电子构型的不同，将周期表分成几个 区（blocks）；同一区里的元素，其填在最高能级上的电子的亚层轨道类型是相同的。 分区的名称，是根据原子轨道的电子亚层名称定的。
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