Uranium

Uranium (Óa-im: "u-lá-ní-ùm") sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 92, hoà-ha̍k hû-hō sī U.

Uranium,  ₉₂U

Ki-pún sèng-chit
Miâ, hû-hō	uranium, U
Gōa-hêng	silvery gray metallic; corrodes to a spalling black oxide coat in air
Uranium tī chiu-kî-piáu lāi ê ūi-tì
Nd ↑ U ↓ (Uqq) protactinium ← uranium → neptunium
Goân-chú-hoan	92
Goân-chú-liōng (±)	238.02891(3)[1]
Goân-sò͘ lūi-pia̍t	actinium-hē
Cho̍k, hun-khu	n/a, f khu
Chiu-kî	tē 7 chiu-kî
Tiān-chú pâi-lia̍t	[Rn] 5f3 6d1 7s2
per shell	2, 8, 18, 32, 21, 9, 2
Bu̍t-lí sèng-chit
Siòng	kò͘-thé
Iûⁿ-tiám	1405.3 K ​(1132.2 °C, ​2070 °F)
Hut-tiám	4404 K ​(4131 °C, ​7468 °F)
Bi̍t-tō͘  (sek-un)	19.1 g·cm−3
17.3 g·cm−3
Iûⁿ-hoà-jia̍t	9.14 kJ·mol−1
Cheng-hoat-jia̍t	417.1 kJ·mol−1
Jia̍t-iông-liōng	27.665 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 2325 2564 2859 3234 3727 4402
Goân-chú sèng-chit
Sng-hòa-sò͘	6, 5, 4, 3,[2] 2, 1 ​(a weakly basic oxide)
Tiān-hū-tō͘	Pauling scale: 1.38
Tiān-lī-lêng	1st: 597.6 kJ·mol−1 2nd: 1420 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 156 pm
Kiōng-kè pòaⁿ-kèng	196±7 pm
Van der Waals pòaⁿ-kèng	186 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​orthorhombic
Siaⁿ-sok (sòe kùn-á)	3155 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	13.9 µm·m−1·K−1 (at 25 °C)
Jia̍t-thoân-tō-lu̍t	27.5 W·m−1·K−1
Tiān-chó͘-lu̍t	0.280 µΩ·m (at 0 °C)
Chû-sèng	paramagnetic
Young hē-sò͘	208 GPa
Shear hē-sò͘	111 GPa
Bulk hē-sò͘	100 GPa
Poisson pí	0.23
Vickers ngē-tō͘	1960–2500 MPa
Brinell ngē-tō͘	2350–3850 MPa
CAS teng-kì pian-hō	7440-61-1
Le̍k-sú
Hō-miâ	after planet Uranus, itself named after Greek god of the sky Uranus
Hoat-hiān	Martin Heinrich Klaproth (1789)
Siōng chá hû-lî	Eugène-Melchior Péligot (1841)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: uranium ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 232U syn 68.9 y SF – – α 5.414 228Th 233U trace 1.592×105 y SF 197.93[3] – α 4.909 229Th 234U 0.005% 2.455×105 y SF 197.78 – α 4.859 230Th 235U 0.720% 7.04×108 y SF 202.48 – α 4.679 231Th 236U trace 2.342×107 y SF 201.82 – α 4.572 232Th 238U 99.274% 4.468×109 y α 4.270 234Th SF 205.87 – β−β− – 238Pu