Neptunium (Hon-ngî : 錼 nài fe̍t-chá 鎿 ná ) he yit-chúng fa-ho̍k ngièn-su , fa-ho̍k fù-ho vì Np , ngièn-chṳ́ su-muk he 93 .
Neptunium, 93 ngoi-kôn
silvery metallic Kî-pún sin-sit Miàng, fù-ho
Neptunium, Np ngoi-hìn
silvery metallic Neptunium chhai chû-khì-péu ke vi-chi
ngièn-chṳ́ sì-sú
93 ngièn-chṳ́-liòng
(237) ngièn-su lui-phe̍t
actinium-hi Chhu̍k , fûn-khî
n/a , f-block chû-khì
period 7 thien-chṳ́ phài-lie̍t
[Rn ] 5f4 6d1 7s2 per shell
2, 8, 18, 32, 22, 9, 2 vu̍t-lî sin-chṳt Siông
ku-thí yùng-tiám
912±3 K (639±3 °C, 1182±5 °F) pui-tiám
4447 K (4174 °C, 7545 °F) (extrapolated) Me̍t-thu near Sit-vûn
alpha: 20.45 g·cm−3 [ 1] −3 Yùng-fa-ngie̍t
5.19 kJ·mol−1 Chîn-fat-ngie̍t
336 kJ·mol−1 Ngie̍t-yùng-liong
29.46 J·mol−1 −1
chîn-hi-ap
P (Pa)
1
10
100
1 k
10 k
100 k
chhai T (K)
2194
2437
Ngièn-chṳ́ sin-chṳt Yông-fa-su
7, 6, 5 , 4, 3, 2 (an amphoteric oxide) Thien-fu-sin
Pauling scale: 1.36 Thien-lì-nèn
1st: 604.5 kJ·mol−1 Ngièn-chṳ́ pan-kang
empirical: 155 pm Khiung-ka pan-kang
190±1 pm Miscellanea Chîn-thí keu-chho
orthorhombic Ngie̍t-chhòn-thô-li̍t
6.3 W·m−1 −1 Thien-chú-li̍t
1.220 µΩ·m (at 22 °C) Chhṳ̀-sin
paramagnetic [ 2] CAS Registry Number
7439-99-8 Le̍k-sú Hí-miàng
after planet Neptune , itself named after Roman god of the sea Neptune Fat-hien
Edwin McMillan and Philip H. Abelson (1940) Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Neptunium ke thùng-vi-su
↑ Sanchez, Rene G.; Loaiza, David J.; Kimpland, Robert H.; Hayes, David K.; Cappiello, Charlene C.; Myers, William L.; Jaegers, Peter J.; Clement, Steven D.; Butterfield, Kenneth B. "Criticality of a 237 Np Sphere" (PDF) . Japanese Atomic Energy Agency. Archived from the original (PDF) on 2014-05-12. 2014-08-06 chhà-khon . ↑ Magnetic susceptibility of the elements and inorganic compounds , in Handbook of Chemistry and Physics 81st edition, CRC press.
