“碱金属”造句

碱金属原子的价原子具有两种能态.
The valence atom of an alkali - metal atom has two states.

所有的碱金属都在闭合壳层之外有一单个S电子.
All the alkali metals have a single s - electron outside a closed shell.

当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.
It was surprising when the alkali spectra showed unmistakable doublets.

• #碱金属