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Neptunium, 93
Ki-pún sèng-chit Miâ, hû-hō
neptunium, Np Gōa-hêng
silvery metallic Neptunium tī chiu-kî-piáu lāi ê ūi-tì
Goân-chú-hoan
93 Goân-chú-liōng
(237) Goân-sò͘ lūi-pia̍t
actinium-hē Cho̍k , hun-khu
n/a , f khu Chiu-kî
tē 7 chiu-kî Tiān-chú pâi-lia̍t
[Rn ] 5f4 6d1 7s2 per shell
2, 8, 18, 32, 22, 9, 2 Bu̍t-lí sèng-chit Siòng
solid Iûⁿ-tiám
912±3 K (639±3 °C, 1182±5 °F) Hut-tiám
4447 K (4174 °C, 7545 °F) (extrapolated) Bi̍t-tō͘ (sek-un )
alpha: 20.45 g·cm−3 [ 1] −3 Iûⁿ-hoà-jia̍t
5.19 kJ·mol−1 Cheng-hoat-jia̍t
336 kJ·mol−1 Jia̍t-iông-liōng
29.46 J·mol−1 −1
cheng-khì-ap
P (Pa)
1
10
100
1 k
10 k
100 k
tī T (K)
2194
2437
Goân-chú sèng-chit Sng-hòa-sò͘
7, 6, 5 , 4, 3, 2 (an amphoteric oxide) Tiān-hū-tō͘
Pauling scale: 1.36 Tiān-lī-lêng
1st: 604.5 kJ·mol−1 Goân-chú pòaⁿ-kèng
empirical: 155 pm Kiōng-kè pòaⁿ-kèng
190±1 pm Cha̍p-lio̍k Chiⁿ-thé kò͘-chō
orthorhombic Jia̍t-thoân-tō-lu̍t
6.3 W·m−1 −1 Tiān-chó͘-lu̍t
1.220 µΩ·m (at 22 °C) Chû-sèng
paramagnetic [ 2] CAS teng-kì pian-hō
7439-99-8 Le̍k-sú Hō-miâ
after planet Neptune , itself named after Roman god of the sea Neptune Hoat-hiān
Edwin McMillan and Philip H. Abelson (1940) Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: neptunium ê tông-ūi-sò͘
Neptunium sī 1 ê hoà-ha̍k goân-sò͘ . I ê goân-chú-hoan sī 93, hoà-ha̍k hû-hō sī Np.
↑ 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. goân-loē-iông (PDF) tī 2013-01-06 hőng khó͘-pih. 2014-08-06 khòaⁿ--ê . ↑ Magnetic susceptibility of the elements and inorganic compounds , in Handbook of Chemistry and Physics 81st edition, CRC press.
