這個拼法是2個不同的字· 2 words spelled “valence”
- 1valence · atom's combining power原子價One way to hold this word is to picture a thing with a fixed number of hands, and to ask how many it can hold…
- 2valence · short cloth on a curtain or bed窗簾上緣布；床裙This one is best held as a separate word that happens to share a spelling.
valence · atom's combining power
nounOne way to hold this word is to picture a thing with a fixed number of hands, and to ask how many it can hold and which way it pulls. An oxygen atom has two hands, so it holds two hydrogens. A verb like give has three, so a sentence with give needs three people or things around it. A feeling has one hand too, but what matters there is the direction it pulls — toward the thing or away from it. Counting the hands, and reading the pull, is what valence does in every field that borrowed it.
From the word’s history
The source says the chemistry sense and the feeling sense were both borrowed from German Valenz plus English -ence, and that Valenz is short for Quantivalenz, which goes back to Latin quantus, how much. So the word began as a question of how much a thing can combine, which is the counting picture above.
來源資料說，化學的意思和心理學的意思都是從德文 Valenz 借來，再加上英文字尾 -ence；而 Valenz 是 Quantivalenz 的縮寫，可以追到拉丁文 quantus（多少）。所以這個字一開始問的就是「能結合多少」，跟上面那個數手的畫面正好對上。
Wiktionary, "valence" (etymology 1)
valence · short cloth on a curtain or bed
nounThis one is best held as a separate word that happens to share a spelling. Picture a short strip of cloth running along the top of a curtain or around the base of a bed, there to cover the rail, the hooks or the gap underneath. Nothing here is being counted or combined, and the vowel is usually different too: VAL-ence, not VAY-lence.
From the word’s history
The source lists this under a separate origin and describes it only as a variant of valance, so the picture does not need to connect to the chemistry word at all.
來源資料把它放在另一條詞源底下，只說它是 valance 的變體拼法。所以這個畫面不需要跟化學那個 valence 牽上關係。
Wiktionary, "valence" (etymology 2)
登入就可以看每一支怎麼連回核心畫面。