univalent

/yoo-nuh-vey-luhnt, yoo-niv-uh-/US // ˌyu nəˈveɪ lənt, yuˈnɪv ə- //UK // (ˌjuːnɪˈveɪlənt, juːˈnɪvələnt) //

一价,一价的,一价元素,一价性

Definitions

adj.形容词 adjective

1
- : Chemistry. having a valence of one; monovalent.
- : Genetics. single; unpaired; not possessing or joining its homologous chromosome in synapsis.

Univalent hydrogen and divalent oxygen will then have the symbols H- and -O-.
A divalent element, on the other hand, will combine with two atoms of a univalent element.
Silver acts as a univalent element and calcium as a divalent element in the formation of their respective nitrates and chlorides.
As will be shown later in the chapter, the group NH4 in this compound acts as a univalent radical and is known as ammonium.
These compounds, when dissolved in water, dissociate in such a way as to form simple, univalent metallic ions which are colorless.