valency

🇺🇸 /ˈveɪlənsi/ 🇬🇧 /ˈveɪlənsi/
詞頻
難度
標籤 RARE
noun
R

The number that tells how many hydrogen atoms an atom can link with or replace in a chemical reaction.

The valency of oxygen is usually -2, which means it often combines with two hydrogen atoms.

氧的價數通常為-2,這意味著它通常和兩個氫原子結合。

R

The number of words a verb needs to work correctly in a sentence.

The verb 'give' has a valency of two, as in 'She gave him a book.'

動詞 'give' 的價數為二,正如 '她給了他一本書。' 中所示。

translation

n. 化合價, 價

詞形變化

Plural valences