Protactinium

Protactinium he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Pa, ngièn-chṳ́ su-muk he 91.

  1. Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
  2. Donohue, J. (1959). "On the crystal structure of protactinium metal". Acta Crystallographica 12 (9): 697. doi:10.1107/S0365110X59002031. 
  3. Cverna, Fran, pian. (2002). "Chapter 2. Thermal Expansion". ASM Ready Reference: Thermal Properties of Metals (PDF). ASM International. p. 11. ISBN 0871707683. 
  4. Lide, D. R., pian. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th pán.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. 
Protactinium,  91Pa
ngoi-kôn
bright, silvery metallic luster
Kî-pún sin-sit
Miàng, fù-ho protactinium, Pa
ngoi-hìn bright, silvery metallic luster
Protactinium chhai chû-khì-péu ke vi-chi
Khiâng (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Hoi (hî-yù hi-thí)
Lithium (kán-kîm-su̍k)
Beryllium (kán-thú kîm-su̍k)
Phìn (lui-kîm-su̍k)
Than (tô-ngièn-chṳ́ fî-kîm-su̍k)
Tham (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Yông (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Fuk (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Nái (hî-yù hi-thí)
Na̍p (kán-kîm-su̍k)
Magnesium (kán-thú kîm-su̍k)
Lî (heu-ko-thu kîm-su̍k)
Si̍t (lui-kîm-su̍k)
Lìn (tô-ngièn-chṳ́ fî-kîm-su̍k)
Liù-vòng (tô-ngièn-chṳ́ fî-kîm-su̍k)
Liu̍k (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Argon (hî-yù hi-thí)
Kap (kán-kîm-su̍k)
Koi (kán-thú kîm-su̍k)
Scandium (ko-thu kîm-su̍k)
Titanium (ko-thu kîm-su̍k)
Vanadium (ko-thu kîm-su̍k)
Chromium (ko-thu kîm-su̍k)
Manganese (ko-thu kîm-su̍k)
Thiet (ko-thu kîm-su̍k)
Cobalt (ko-thu kîm-su̍k)
Nickel (ko-thu kîm-su̍k)
Thùng (ko-thu kîm-su̍k)
Â-yèn (ko-thu kîm-su̍k)
Gallium (heu-ko-thu kîm-su̍k)
Germanium (lui-kîm-su̍k)
Phî (lui-kîm-su̍k)
Selenium (tô-ngièn-chṳ́ fî-kîm-su̍k)
Chhiu (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Krypton (hî-yù hi-thí)
Rubidium (kán-kîm-su̍k)
Strontium (kán-thú kîm-su̍k)
Yttrium (ko-thu kîm-su̍k)
Zirconium (ko-thu kîm-su̍k)
Niobium (ko-thu kîm-su̍k)
Molybdenum (ko-thu kîm-su̍k)
Technetium (ko-thu kîm-su̍k)
Ruthenium (ko-thu kîm-su̍k)
Rhodium (ko-thu kîm-su̍k)
Palladium (ko-thu kîm-su̍k)
Ngiùn (ko-thu kîm-su̍k)
Cadmium (ko-thu kîm-su̍k)
Indium (heu-ko-thu kîm-su̍k)
Siak (heu-ko-thu kîm-su̍k)
Antimony (lui-kîm-su̍k)
Tellurium (lui-kîm-su̍k)
Tién (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Xenon (hî-yù hi-thí)
Caesium (kán-kîm-su̍k)
Barium (kán-thú kîm-su̍k)
Lanthanum (lanthanum-hi)
Cerium (lanthanum-hi)
Praseodymium (lanthanum-hi)
Neodymium (lanthanum-hi)
Promethium (lanthanum-hi)
Samarium (lanthanum-hi)
Europium (lanthanum-hi)
Gadolinium (lanthanum-hi)
Terbium (lanthanum-hi)
Dysprosium (lanthanum-hi)
Holmium (lanthanum-hi)
Erbium (lanthanum-hi)
Thulium (lanthanum-hi)
Ytterbium (lanthanum-hi)
Lutetium (lanthanum-hi)
Hafnium (ko-thu kîm-su̍k)
Tantalum (ko-thu kîm-su̍k)
Tungsten (ko-thu kîm-su̍k)
Rhenium (ko-thu kîm-su̍k)
Osmium (ko-thu kîm-su̍k)
Iridium (ko-thu kîm-su̍k)
Pha̍k-kîm (ko-thu kîm-su̍k)
Kîm (ko-thu kîm-su̍k)
Súi-ngiùn (ko-thu kîm-su̍k)
Thallium (heu-ko-thu kîm-su̍k)
Yèn (heu-ko-thu kîm-su̍k)
Bismuth (heu-ko-thu kîm-su̍k)
Polonium (heu-ko-thu kîm-su̍k)
Astatine (lui-kîm-su̍k)
Radon (hî-yù hi-thí)
Francium (kán-kîm-su̍k)
Radium (kán-thú kîm-su̍k)
Actinium (actinium-hi)
Thorium (actinium-hi)
Protactinium (actinium-hi)
Uranium (actinium-hi)
Neptunium (actinium-hi)
Plutonium (actinium-hi)
Americium (actinium-hi)
Curium (actinium-hi)
Berkelium (actinium-hi)
Californium (actinium-hi)
Einsteinium (actinium-hi)
Fermium (actinium-hi)
Mendelevium (actinium-hi)
Nobelium (actinium-hi)
Lawrencium (actinium-hi)
Rutherfordium (ko-thu kîm-su̍k)
Dubnium (ko-thu kîm-su̍k)
Seaborgium (ko-thu kîm-su̍k)
Bohrium (ko-thu kîm-su̍k)
Hassium (ko-thu kîm-su̍k)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (ko-thu kîm-su̍k)
Nihonium (unknown chemical properties)
Flerovium (heu-ko-thu kîm-su̍k)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
Pr

Pa

(Uqt)
thoriumprotactiniumuranium
ngièn-chṳ́ sì-sú 91
ngièn-chṳ́-liòng (±) 231.03588(2)[1]
ngièn-su lui-phe̍t   actinium-hi
Chhu̍k, fûn-khî n/a, f-block
chû-khì period 7
thien-chṳ́ phài-lie̍t [Rn] 5f2 6d1 7s2
per shell 2, 8, 18, 32, 20, 9, 2
vu̍t-lî sin-chṳt
Siông ku-thí
yùng-tiám 1841 K ​(1568 °C, ​2854 °F)
pui-tiám 4300 K ​(4027 °C, ​7280 °F) (?)
Me̍t-thu near Sit-vûn 15.37 g·cm−3
Yùng-fa-ngie̍t 12.34 kJ·mol−1
Chîn-fat-ngie̍t 481 kJ·mol−1
Ngièn-chṳ́ sin-chṳt
Yông-fa-su 2, 3, 4, 5 ​(a weakly basic oxide)
Thien-fu-sin Pauling scale: 1.5
Thien-lì-nèn 1st: 568 kJ·mol−1
Ngièn-chṳ́ pan-kang empirical: 163 pm
Khiung-ka pan-kang 200 pm
Miscellanea
Chîn-thí keu-chhotetragonal[2]
Tetragonal crystal structure for protactinium
Ngie̍t-phàng-chong ~9.9 µm·m−1·K−1[3] (at r.t.)
Ngie̍t-chhòn-thô-li̍t 47 W·m−1·K−1
Thien-chú-li̍t 177 nΩ·m (at 0 °C)
Chhṳ̀-sin paramagnetic[4]
CAS Registry Number 7440-13-3
Le̍k-sú
Yi-chhet Dmitri Mendeleev (1869)
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ William Crookes (1900)
Named by Otto Hahn and Lise Meitner (1917–8)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: protactinium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP
229Pa syn 1.5 d ε 0.311 229Th
230Pa syn 17.4 d ε 1.310 230Th
231Pa 100% 3.276×104 y α 5.150 227Ac
232Pa syn 1.31 d β 1.337 232U
233Pa trace 26.967 d β 0.5701 233U
234Pa trace 6.75 h β 2.195 234U
234mPa trace 1.17 min β 2.29 234U