Tiao Zhi Nei Rong

Neptunium

Chhiung Wikipedia loi
Neptunium, 93Np
ngoi-kon
silvery metallic
Ki-pun sin-sit
Miang, fu-ho Neptunium, Np
ngoi-hin silvery metallic
Neptunium chhai chu-khi-peu ke vi-chi
Pm
|
Np
|
(Uqp)
uranium - Neptunium - plutonium
ngien-chu si-su 93
ngien-chu-liong (237)
ngien-su lui-phet actinium-hi
Chhuk, fun-khi n/a, f-block
chu-khi period 7
thien-chu phai-liet [Rn] 5f4 6d1 7s2
per shell 2, 8, 18, 32, 22, 9, 2
vut-li sin-chut
Siong ku-thi
yung-tiam 912+-3 K (639+-3 degC, 1182+-5 degF)
pui-tiam 4447 K (4174 degC, 7545 degF) (extrapolated)
Met-thu near Sit-vun alpha: 20.45 g*cm-3[1]
accepted standard value: 19.38 g*cm-3
Yung-fa-ngiet 5.19 kJ*mol-1
Chin-fat-ngiet 336 kJ*mol-1
Ngiet-yung-liong 29.46 J*mol-1*K-1
chin-hi-ap
P (Pa) 1 10 100 1 k 10 k 100 k
chhai T (K) 2194 2437
Ngien-chu sin-chut
Yong-fa-su 7, 6, 5, 4, 3, 2 (an amphoteric oxide)
Thien-fu-sin Pauling scale: 1.36
Thien-li-nen 1st: 604.5 kJ*mol-1
Ngien-chu pan-kang empirical: 155 pm
Khiung-ka pan-kang 190+-1 pm
Miscellanea
Chin-thi keu-chho orthorhombic
Ngiet-chhon-tho-lit 6.3 W*m-1*K-1
Thien-chu-lit 1.220 uO*m (at 22 degC)
Chhu-sin paramagnetic[2]
CAS Registry Number 7439-99-8
Lek-su
Hi-miang after planet Neptune, itself named after Roman god of the sea Neptune
Fat-hien Edwin McMillan and Philip H. Abelson (1940)
Chui vun-thin ke thung-vi-su
Chu vun-chong: Neptunium ke thung-vi-su
iso NA half-life DM DE (MeV) DP
235Np syn 396.1 d a 5.192 231Pa
e 0.124 235U
236Np syn 1.54x105 y e 236U
b- 236Pu
a 232Pa
237Np trace 2.144x106 y a 4.959 233Pa
239Np trace 2.356 d b- 0.218 239Pu

Neptunium (Hon-ngi: Nai nai fet-cha Na na) he yit-chung fa-hok ngien-su, fa-hok fu-ho vi Np, ngien-chu su-muk he 93.

Chham-khau chu-liau

[phien-sia | koi ngien-su-ma]
  1. | 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 237Np Sphere" (PDF). Japanese Atomic Energy Agency. Archived from the original (PDF) on 2014-05-12. 2014-08-06 chha-khon.
  2. | Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
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