alkali造句
The valence atom of an
alkali - metal atom has two states.
碱金属原子的价原子具有两种能态.
Such detergents do not yellow the wool as
alkali tends to do.
这种洗涤剂不会象碱那样使羊毛发黄.
All the
alkali metals have a single s - electron outside a closed shell.
所有的碱金属都在闭合壳层之外有一单个S电子.