Sng-hòa-sò͘
Tī hòa-ha̍k tiong, sng-hòa-sò͘ (Hàn-jī: 酸化數; Eng-gí: oxidation number) sī hō͘ goân-chú ê chi̍t khoán "ká-sióng" ê tiān-hō sò͘, bē-su-kóng i chit-lō goân-chú kap pa̍t-ê goân-chú chi-kan lóng sī lī-chú kiat-ha̍p.
Sng-hòa-sò͘ it-poaⁿ lóng sī chéng-sò͘, i khó-lêng sī chiàⁿ--ê, hū--ê, ia̍h sī lêng. Ū-sî-chūn , phì-lūn-kóng Fe3O4 tiong ê thih, sng-hòa-sò͘ sī 8/3. Siōng koân ê sng-hòa-sò͘ chhut-hiān tī sì-sng-hòa-i (IX) IrO+
4.[1]
Koat-tēng sng-hòa-sò͘ ê hoat-chek
- Goân-sò͘ ê sng-hòa-sò͘ sī 0. Lē: Na (0), Cl2 (0).
- Ko͘-goân-chú lī-chú ê sng-hòa-sò͘ tō sī i ê hòa-ha̍p-kè. Lē: Fe3+(+3), Zn2+(+2).
- Tiān-tiong-sèng ê hòa-ha̍p-bu̍t tiong, só͘-ū goân-chú ê sng-hòa-sò͘ chóng-hô sī 0.
- Hòa-ha̍p-bu̍t tiong,
- 1A cho̍k goân-sò͘ ê sng-hòa-sò͘ it-poaⁿ sī +1.
- 2A cho̍k goân-sò͘ ê sng-hòa-sò͘ it-poaⁿ sī +2.
- Chúi-sò͘ (H) ê sng-hòa-sò͘ it-poaⁿ sī +1, tān-sī tī kim-sio̍k chúi-só͘ hòa-ha̍p-bu̍t tiong sī −1.
- Sǹg-sò͘ (O) ê sng-hòa-sò͘ it-poaⁿ sī −2, tān-sī tī kò-sng-hòa-bu̍t tiong sī −2, tī chhiau-sng-hòa-bu̍t tiong sī −1/2.
- Hut-sò͘ (F) ê sng-hòa-sò͘ it-tēng sī −1.
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