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您好,Purasbar 欢迎您的到来~
亲爱的用户:欢迎来到元素周期表吧,Purasbar欢迎您的到来~
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化學類
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元素週期表是依原子序数、核外电子排布情况和化学性质的相似性来排列化学元素的表格。一如其名,元素週期表的排列展现元素性质的週期性趋势。其中,週期表的横行被称作週期,纵列则被称作族。一般而言,在同一週期...
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