Cerium

Cerium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 58, hoà-ha̍k hû-hō sī Ce.

Cerium,  ₅₈Ce

Ki-pún sèng-chit
Miâ, hû-hō	cerium, Ce
Gōa-hêng	silvery white
Cerium tī chiu-kî-piáu lāi ê ūi-tì
– ↑ Ce ↓ Th lanthanum ← cerium → praseodymium
Goân-chú-hoan	58
Goân-chú-liōng (±)	140.116(1)[1]
Goân-sò͘ lūi-pia̍t	lanthanum-hē
Cho̍k, hun-khu	n/a, f khu
Chiu-kî	tē 6 chiu-kî
Tiān-chú pâi-lia̍t	[Xe] 4f1 5d1 6s2[2]
per shell	2, 8, 18, 19, 9, 2
Bu̍t-lí sèng-chit
Siòng	solid
Iûⁿ-tiám	1068 K ​(795 °C, ​1463 °F)
Hut-tiám	3716 K ​(3443 °C, ​6229 °F)
Bi̍t-tō͘  (sek-un)	6.770 g·cm−3
6.55 g·cm−3
Iûⁿ-hoà-jia̍t	5.46 kJ·mol−1
Cheng-hoat-jia̍t	398 kJ·mol−1
Jia̍t-iông-liōng	26.94 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 1992 2194 2442 2754 3159 3705
Goân-chú sèng-chit
Sng-hòa-sò͘	4, 3, 2, 1 ​(a mildly basic oxide)
Tiān-hū-tō͘	Pauling scale: 1.12
Tiān-lī-lêng	1st: 534.4 kJ·mol−1 2nd: 1050 kJ·mol−1 3rd: 1949 kJ·mol−1 (more)
Goân-chú pòaⁿ-kèng	empirical: 181.8 pm
Kiōng-kè pòaⁿ-kèng	204±9 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​double hexagonal close-packed (dhcp) β-Ce
Chiⁿ-thé kò͘-chō	​face-centered cubic (fcc) γ-Ce
Siaⁿ-sok (sòe kùn-á)	2100 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	γ, poly: 6.3 µm·m−1·K−1 (at r.t.)
Jia̍t-thoân-tō-lu̍t	11.3 W·m−1·K−1
Tiān-chó͘-lu̍t	β, poly: 828 nΩ·m (at r.t.)
Chû-sèng	paramagnetic[3]
Young hē-sò͘	γ form: 33.6 GPa
Shear hē-sò͘	γ form: 13.5 GPa
Bulk hē-sò͘	γ form: 21.5 GPa
Poisson pí	γ form: 0.24
Mohs ngē-tō͘	2.5
Vickers ngē-tō͘	210–470 MPa
Brinell ngē-tō͘	186–412 MPa
CAS teng-kì pian-hō	7440-45-1
Le̍k-sú
Hō-miâ	after dwarf planet Ceres, itself named after Roman deity of agriculture Ceres
Hoat-hiān	Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger (1803)
Siōng chá hû-lî	Carl Gustaf Mosander (1839)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: cerium ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 134Ce syn 3.16 d ε 0.500 134La 136Ce 0.185% >3.8×1016 y (β+β+) 2.419 136Ba 138Ce 0.251% >1.5×1014 y (β+β+) 0.694 138Ba 139Ce syn 137.640 d ε 0.278 139La 140Ce 88.450% – (SF) <43.633 141Ce syn 32.501 d β− 0.581 141Pr 142Ce 11.114% >5×1016 y (β−β−) 1.417 142Nd (α) 1.298 138Ba 144Ce syn 284.893 d β− 0.319 144Pr
Decay modes in parentheses are predicted, but have not yet been observed

Chham-khó

1. Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
2. Ground levels and ionization energies for the neutral atoms, NIST
3. Lide, D. R., pian. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th pán.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. Archived from the original on 2011-03-03. 2016-06-10 khòaⁿ--ê.CS1 maint: Unfit url (link)