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Polonium

Chhiùng Wikipedia lòi
Polonium,  84Po
ngoi-kôn
silvery
Kî-pún sin-sit
Miàng, fù-ho Polonium, Po
thùng-su-thí α, β
ngoi-hìn silvery
Polonium chhai chû-khì-péu ke vi-chi
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Te

Po

Lv
bismuthPoloniumastatine
ngièn-chṳ́ sì-sú 84
ngièn-chṳ́-liòng (209)
ngièn-su lui-phe̍t   heu-ko-thu kîm-su̍k, ia̍h-sī lūi-kim-sio̍k
Chhu̍k, fûn-khî 16 chhu̍k, p-block
chû-khì period 6
thien-chṳ́ phài-lie̍t [Xe] 4f14 5d10 6s2 6p4
per shell 2, 8, 18, 32, 18, 6
vu̍t-lî sin-chṳt
Siông ku-thí
yùng-tiám 527 K ​(254 °C, ​489 °F)
pui-tiám 1235 K ​(962 °C, ​1764 °F)
Me̍t-thu near Sit-vûn alpha: 9.196 g·cm−3
beta: 9.398 g·cm−3
Yùng-fa-ngie̍t ca. 13 kJ·mol−1
Chîn-fat-ngie̍t 102.91 kJ·mol−1
Ngie̍t-yùng-liong 26.4 J·mol−1·K−1
chîn-hi-ap
P (Pa) 1 10 100 1 k 10 k 100 k
chhai T (K) (846) 1003 1236
Ngièn-chṳ́ sin-chṳt
Yông-fa-su 6, 5,[1] 4, 2, −2 ​(an amphoteric oxide)
Thien-fu-sin Pauling scale: 2.0
Thien-lì-nèn 1st: 812.1 kJ·mol−1
Ngièn-chṳ́ pan-kang empirical: 168 pm
Khiung-ka pan-kang 140±4 pm
Van der Waals pan-kang 197 pm
Miscellanea
Chîn-thí keu-chhocubic
Cubic crystal structure for Polonium

α-Po
Chîn-thí keu-chhorhombohedral
Rhombohedral crystal structure for Polonium

β-Po
Ngie̍t-phàng-chong 23.5 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t 20 W·m−1·K−1 (?)
Thien-chú-li̍t α: 0.40 µΩ·m (at 0 °C)
Chhṳ̀-sin nonmagnetic
CAS Registry Number 7440-08-6
Le̍k-sú
Hí-miàng after Polonia, Latin for Poland. Homeland of Marie Curie
Fat-hien Pierre Curie and Marie Curie (1898)
First isolation Willy Marckwald (1902)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Polonium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP
208Po syn 2.898 y α 5.215 204Pb
β+ 1.401 208Bi
209Po syn (125.2±3.3) y[2] α 4.979 205Pb
β+ 1.893 209Bi
210Po trace 138.376 d α 5.307 206Pb

Polonium (Hon-ngî: ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Po, ngièn-chṳ́ su-muk he 84.

Chhâm-kháu chṳ̂-liau

[phiên-siá | kói ngièn-sṳ́-mâ]
  1. Thayer, John S. (2010). "Relativistic Effects and the Chemistry of the Heavier Main Group Elements": 78. doi:10.1007/978-1-4020-9975-5_2. 
  2. Boutin, Chad. "Polonium's Most Stable Isotope Gets Revised Half-Life Measurement". nist.gov. NIST Tech Beat. 9 September 2014 chhà-khon.