valency

🇺🇸 /ˈveɪlənsi/ 🇬🇧 /ˈveɪlənsi/
词频
难度
标签 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.

氧的化合价通常为-2,这意味着它通常与两个氢原子结合。

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.'

动词 'give' 的化合价为2,就像在 '她给了他一本书。' 中一样。

translation

n. 化合价, 价

词形变化

Plural valences