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Promethium, 61PmSpectral lines of promethium |
Ki-pún sèng-chit |
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Miâ, hû-hō | promethium, Pm |
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Gōa-hêng | metallic |
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Promethium tī chiu-kî-piáu lāi ê ūi-tì |
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Goân-chú-hoan | 61 |
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Goân-chú-liōng | [145] |
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Goân-sò͘ lūi-pia̍t | lanthanum-hē |
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Cho̍k, hun-khu | n/a, f khu |
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Chiu-kî | tē 6 chiu-kî |
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Tiān-chú pâi-lia̍t | [Xe] 4f5 6s2 |
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per shell | 2, 8, 18, 23, 8, 2 |
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Bu̍t-lí sèng-chit |
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Siòng | solid |
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Iûⁿ-tiám | 1315 K (1042 °C, 1908 °F) |
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Hut-tiám | 3273 K (3000 °C, 5432 °F) |
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Bi̍t-tō͘ (sek-un) | 7.26 g·cm−3 |
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Iûⁿ-hoà-jia̍t | 7.13 kJ·mol−1 |
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Cheng-hoat-jia̍t | 289 kJ·mol−1 |
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Goân-chú sèng-chit |
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Sng-hòa-sò͘ | 3, 2 (a mildly basic oxide) |
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Tiān-hū-tō͘ | Pauling scale: 1.13 (?) |
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Tiān-lī-lêng | 1st: 540 kJ·mol−1 2nd: 1050 kJ·mol−1 3rd: 2150 kJ·mol−1 |
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Goân-chú pòaⁿ-kèng | empirical: 183 pm |
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Kiōng-kè pòaⁿ-kèng | 199 pm |
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Cha̍p-lio̍k |
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Chiⁿ-thé kò͘-chō | double hexagonal close-packed (dhcp) |
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Jia̍t-phòng-tiòng | 9.0 µm·m−1·K−1[1] (at r.t.) |
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Jia̍t-thoân-tō-lu̍t | 17.9 W·m−1·K−1 |
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Tiān-chó͘-lu̍t | est. 0.75 µΩ·m (at r.t.) |
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Chû-sèng | paramagnetic[2] |
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Young hē-sò͘ | α form: est. 46 GPa |
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Shear hē-sò͘ | α form: est. 18 GPa |
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Bulk hē-sò͘ | α form: est. 33 GPa |
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Poisson pí | α form: est. 0.28 |
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CAS teng-kì pian-hō | 7440-12-2 |
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Le̍k-sú |
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Hoat-hiān | Chien Shiung Wu, Emilio Segrè, Hans Bethe (1942) |
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Siōng chá hû-lî | Charles D. Coryell, Jacob A. Marinsky, Lawrence E. Glendenin, Harold G. Richter (1945) |
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hō-miâ | Grace Mary Coryell (1945) |
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Chòe ún-tēng ê tông-ūi-sò͘ |
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Chú bûn-chiong: promethium ê tông-ūi-sò͘ |
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Promethium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 61, hoà-ha̍k hû-hō sī Pm.