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Cerium, 58Ce
|
Ki-pún sèng-chit |
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Miâ, hû-hō |
cerium, Ce |
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Gōa-hêng |
silvery white |
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Cerium tī chiu-kî-piáu lāi ê ūi-tì |
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|
Goân-chú-hoan |
58 |
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Goân-chú-liōng (±) |
140.116(1)[1] |
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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] 4f1 5d1 6s2[2] |
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per shell |
2, 8, 18, 19, 9, 2 |
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Bu̍t-lí sèng-chit |
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Siòng |
solid |
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Iûⁿ-tiám |
1068 K (795 °C, 1463 °F) |
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Hut-tiám |
3716 K (3443 °C, 6229 °F) |
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Bi̍t-tō͘ (sek-un) |
6.770 g·cm−3 |
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6.55 g·cm−3 |
Iûⁿ-hoà-jia̍t |
5.46 kJ·mol−1 |
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Cheng-hoat-jia̍t |
398 kJ·mol−1 |
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Jia̍t-iông-liōng |
26.94 J·mol−1·K−1 |
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cheng-khì-ap
P (Pa)
|
1
|
10
|
100
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1 k
|
10 k
|
100 k
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tī T (K)
|
1992
|
2194
|
2442
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2754
|
3159
|
3705
| |
Goân-chú sèng-chit |
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Sng-hòa-sò͘ |
4, 3, 2, 1 (a mildly basic oxide) |
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Tiān-hū-tō͘ |
Pauling scale: 1.12 |
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Tiān-lī-lêng |
1st: 534.4 kJ·mol−1 2nd: 1050 kJ·mol−1 3rd: 1949 kJ·mol−1 (more) |
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Goân-chú pòaⁿ-kèng |
empirical: 181.8 pm |
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Kiōng-kè pòaⁿ-kèng |
204±9 pm |
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Cha̍p-lio̍k |
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Chiⁿ-thé kò͘-chō |
double hexagonal close-packed (dhcp) β-Ce |
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Chiⁿ-thé kò͘-chō |
face-centered cubic (fcc) γ-Ce |
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Siaⁿ-sok (sòe kùn-á) |
2100 m·s−1 (at 20 °C) |
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Jia̍t-phòng-tiòng |
γ, poly: 6.3 µm·m−1·K−1 (at r.t.) |
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Jia̍t-thoân-tō-lu̍t |
11.3 W·m−1·K−1 |
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Tiān-chó͘-lu̍t |
β, poly: 828 nΩ·m (at r.t.) |
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Chû-sèng |
paramagnetic[3] |
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Young hē-sò͘ |
γ form: 33.6 GPa |
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Shear hē-sò͘ |
γ form: 13.5 GPa |
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Bulk hē-sò͘ |
γ form: 21.5 GPa |
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Poisson pí |
γ form: 0.24 |
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Mohs ngē-tō͘ |
2.5 |
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Vickers ngē-tō͘ |
210–470 MPa |
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Brinell ngē-tō͘ |
186–412 MPa |
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CAS teng-kì pian-hō |
7440-45-1 |
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Le̍k-sú |
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Hō-miâ |
after dwarf planet Ceres, itself named after Roman deity of agriculture Ceres |
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Hoat-hiān |
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger (1803) |
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Siōng chá hû-lî |
Carl Gustaf Mosander (1839) |
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Chòe ún-tēng ê tông-ūi-sò͘ |
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Chú bûn-chiong: cerium ê tông-ūi-sò͘ |
|
Decay modes in parentheses are predicted, but have not yet been observed |
Cerium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 58, hoà-ha̍k hû-hō sī Ce.