Uranium

Uranium (Hon-ngî: 鈾 yóu) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì U, ngièn-chṳ́ su-muk he 92.

Uranium,  ₉₂U

ngoi-kôn
silvery gray metallic; corrodes to a spalling black oxide coat in air
Kî-pún sin-sit
Miàng, fù-ho	Uranium, U
ngoi-hìn	silvery gray metallic; corrodes to a spalling black oxide coat in air
Uranium chhai chû-khì-péu ke vi-chi
Nd ↑ U ↓ (Uqq) protactinium ← Uranium → neptunium
ngièn-chṳ́ sì-sú	92
ngièn-chṳ́-liòng (±)	238.02891(3)
ngièn-su lui-phe̍t	actinium-hi
Chhu̍k, fûn-khî	n/a, f-block
chû-khì	period 7
thien-chṳ́ phài-lie̍t	[Rn] 5f3 6d1 7s2
per shell	2, 8, 18, 32, 21, 9, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1405.3 K ​(1132.2 °C, ​2070 °F)
pui-tiám	4404 K ​(4131 °C, ​7468 °F)
Me̍t-thu near Sit-vûn	19.1 g·cm−3
17.3 g·cm−3
Yùng-fa-ngie̍t	9.14 kJ·mol−1
Chîn-fat-ngie̍t	417.1 kJ·mol−1
Ngie̍t-yùng-liong	27.665 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 2325 2564 2859 3234 3727 4402
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	6, 5, 4, 3, 2, 1 ​(a weakly basic oxide)
Thien-fu-sin	Pauling scale: 1.38
Thien-lì-nèn	1st: 597.6 kJ·mol−1 2nd: 1420 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 156 pm
Khiung-ka pan-kang	196±7 pm
Van der Waals pan-kang	186 pm
Miscellanea
Chîn-thí keu-chho	​orthorhombic
Sâng-suk thin rod	3155 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	13.9 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	27.5 W·m−1·K−1
Thien-chú-li̍t	0.280 µΩ·m (at 0 °C)
Chhṳ̀-sin	paramagnetic
Young's modulus	208 GPa
Shear modulus	111 GPa
Bulk modulus	100 GPa
Poisson ratio	0.23
Vickers hardness	1960–2500 MPa
Brinell hardness	2350–3850 MPa
CAS Registry Number	7440-61-1
Le̍k-sú
Hí-miàng	after planet Uranus, itself named after Greek god of the sky Uranus
Fat-hien	Martin Heinrich Klaproth (1789)
First isolation	Eugène-Melchior Péligot (1841)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Uranium ke thùng-vi-su
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 – 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 234Th SF – β−β− 238Pu