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
ngièn-chṳ́ sì-sú
92 ngièn-chṳ́-liòng (±)
238.02891(3)[1] 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 −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] basic oxide) Thien-fu-sin
Pauling scale: 1.38 Thien-lì-nèn
1st: 597.6 kJ·mol−1 −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 Ngie̍t-phàng-chong
13.9 µm·m−1 −1 Ngie̍t-chhòn-thô-li̍t
27.5 W·m−1 −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
