Uranium,   ₉₂ U

Ki-pun seng-chit
Mia, hu-h?	uranium, U
G?a-heng	silvery gray metallic; corrodes to a spalling black oxide coat in air
Uranium t? chiu-ki-piau l?i e ?i-ti
Nd ↑ U ↓ (Uqq) protactinium ← uranium → neptunium
Goan-chu-hoan	92
Goan-chu-li?ng   (±)	238.02891(3) [1]
Goan-so? l?i-pia?t	actinium-h?
Cho?k , hun-khu	n/a , f khu
Chiu-ki	t? 7 chiu-ki
Ti?n-chu pai-lia?t	[ Rn ] 5f 3 6d 1 7s 2
per shell	2, 8, 18, 32, 21, 9, 2
Bu?t-li seng-chit
Siong	ko?-the
Iuⁿ-tiam	1405.3  K ​(1132.2 °C, ​2070 °F)
Hut-tiam	4404 K ​(4131 °C, ​7468 °F)
Bi?t-t??  ( sek-un )	19.1 g·cm ?3
17.3 g·cm ?3
Iuⁿ-hoa-jia?t	9.14  kJ·mol ?1
Cheng-hoat-jia?t	417.1 kJ·mol ?1
Jia?t-iong-li?ng	27.665 J·mol ?1 ·K ?1
cheng-khi-ap P (Pa) 1 10 100 1 k 10 k 100 k t? T (K) 2325 2564 2859 3234 3727 4402
Goan-chu seng-chit
Sng-hoa-so?	6 , 5, 4, 3, [2] 2, 1 ​(a weakly basic oxide)
Ti?n-h?-t??	Pauling scale: 1.38
Ti?n-l?-leng	1st: 597.6 kJ·mol ?1 2nd: 1420 kJ·mol ?1
Goan-chu poaⁿ-keng	empirical: 156  pm
Ki?ng-ke poaⁿ-keng	196±7 pm
Van der Waals poaⁿ-keng	186 pm
Cha?p-lio?k
Chiⁿ-the ko?-ch?	​ orthorhombic
Siaⁿ-sok (soe kun-a)	3155 m·s ?1 (at 20 °C)
Jia?t-phong-tiong	13.9 μm·m ?1 ·K ?1 (at 25 °C)
Jia?t-thoan-t?-lu?t	27.5 W·m ?1 ·K ?1
Ti?n-cho?-lu?t	0.280 μΩ·m (at 0 °C)
Chu-seng	paramagnetic
Young h?-so?	208 GPa
Shear h?-so?	111 GPa
Bulk h?-so?	100 GPa
Poisson pi	0.23
Vickers ng?-t??	1960?2500 MPa
Brinell ng?-t??	2350?3850 MPa
CAS teng-ki pian-h?	7440-61-1
Le?k-su
H?-mia	after planet Uranus , itself named after Greek god of the sky Uranus
Hoat-hi?n	Martin Heinrich Klaproth (1789)
Si?ng cha hu-li	Eugene-Melchior Peligot (1841)
Choe un-t?ng e tong-?i-so?
Chu bun-chiong: uranium e tong-?i-so?
iso NA half-life DM DE   ( MeV ) DP 232 U syn 68.9 y SF ? ? α 5.414 228 Th 233 U trace 1.592×10 5  y SF 197.93 [3] ? α 4.909 229 Th 234 U 0.005% 2.455×10 5  y SF 197.78 ? α 4.859 230 Th 235 U 0.720% 7.04×10 8  y SF 202.48 ? α 4.679 231 Th 236 U trace 2.342×10 7  y SF 201.82 ? α 4.572 232 Th 238 U 99.274% 4.468×10 9  y α 4.270 234 Th SF 205.87 ? β ? β ? ? 238 Pu

Uranium ( Oa-im: " u-la-ni-um " ) s? 1 e hoa-ha?k goan-so? . I e goan-chu-hoan s? 92, hoa-ha?k hu-h? s? U.

Chham-kho [ siu-kai | kai goan-si-be ]

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