LIMSwiki
Posted on July 23, 2020
By Robert Payne
Actinium, 89AcKi-pún sèng-chit |
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Miâ, hû-hō |
actinium, Ac |
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Gōa-hêng |
silvery-white, glowing with an eerie blue light;[1] sometimes with a golden cast[2] |
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Actinium tī chiu-kî-piáu lāi ê ūi-tì |
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Goân-chú-hoan |
89 |
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Goân-chú-liōng |
(227) |
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Goân-sò͘ lūi-pia̍t |
actinium-hē sometimes considered a transition metal |
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Cho̍k, hun-khu |
n/a, f khu |
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Chiu-kî |
tē 7 chiu-kî |
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Tiān-chú pâi-lia̍t |
[Rn] 6d1 7s2 |
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per shell |
2, 8, 18, 32, 18, 9, 2 |
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Bu̍t-lí sèng-chit |
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Siòng |
kò͘-thé |
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Iûⁿ-tiám |
1500 K (1227 °C, 2240 °F) (estimated)[2] |
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Hut-tiám |
3500±300 K (3200±300 °C, 5800±500 °F) (extrapolated)[2] |
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Bi̍t-tō͘ (sek-un) |
10 g·cm−3 |
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Iûⁿ-hoà-jia̍t |
14 kJ·mol−1 |
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Cheng-hoat-jia̍t |
400 kJ·mol−1 |
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Jia̍t-iông-liōng |
27.2 J·mol−1·K−1 |
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Goân-chú sèng-chit |
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Sng-hòa-sò͘ |
3, 2 (a neutral oxide) |
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Tiān-hū-tō͘ |
Pauling scale: 1.1 |
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Tiān-lī-lêng |
1st: 499 kJ·mol−1 2nd: 1170 kJ·mol−1 |
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Kiōng-kè pòaⁿ-kèng |
215 pm |
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Cha̍p-lio̍k |
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Chiⁿ-thé kò͘-chō |
face-centered cubic (fcc) |
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Jia̍t-thoân-tō-lu̍t |
12 W·m−1·K−1 |
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CAS teng-kì pian-hō |
7440-34-8 |
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Le̍k-sú |
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Hoat-hiān kap siōng chá ê tông-ūi-sò͘ |
Friedrich Oskar Giesel (1902) |
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Chòe ún-tēng ê tông-ūi-sò͘ |
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Chú bûn-chiong: actinium ê tông-ūi-sò͘ |
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Actinium ("Ak-tín-ni-ùm") sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 89, hoà-ha̍k hû-hō sī Ac.
Chham-khó