Astatine

Astatine, ₈₅At
ngoi-kôn
	unknown, probably metallic
Kî-pún sin-sit
Miàng, fù-ho	astatine, At
ngoi-hìn	unknown, probably metallic
Astatine chhai chû-khì-péu ke vi-chi
	polonium ← astatine → radon
ngièn-chṳ́ sì-sú	85
ngièn-chṳ́-liòng	(210)
ngièn-su lui-phe̍t	lui-kîm-su̍k, sometimes classified as a nonmetal, or a metal
Chhu̍k, fûn-khî	17 chhu̍k, p-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 4f14 5d10 6s2 6p5
per shell	2, 8, 18, 32, 18, 7
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	575 K (302 °C, 576 °F)
pui-tiám	610 K (337 °C, 639 °F)
Me̍t-thu near Sit-vûn	(At2) 6.35±0.15 g·cm−3 (predicted)
Mol thí-chit	(At2) 32.94 cm3·mol−1 (predicted)
Yùng-fa-ngie̍t	ca. 6 kJ·mol−1
Chîn-fat-ngie̍t	(At2) 54.39 kJ·mol−1
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	−1, +1, +3, +5, +7
Thien-fu-sin	Pauling scale: 2.2
Thien-lì-nèn	1st: 899.003 kJ·mol−1
Khiung-ka pan-kang	150 pm
Van der Waals pan-kang	202 pm
Miscellanea
Chîn-thí keu-chho	face-centered cubic (fcc) ; (predicted)
Ngie̍t-chhòn-thô-li̍t	1.7 W·m−1·K−1
CAS Registry Number	7440-68-8
Le̍k-sú
Hí-miàng	after Greek astatos (αστατος), meaning "unstable"
Fat-hien	Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segrè (1940)
Chui vún-thin ke thùng-vi-su
	Chú vùn-chông: astatine ke thùng-vi-su

Astatine he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì At, ngièn-chṳ́ su-muk he 85.

↑ Corson, MacKenzie & Segrè 1940.
↑ ^2.0 ^2.1 Hermann, A.; Hoffmann, R.; Ashcroft, N. W. (2013). "Condensed Astatine: Monatomic and Metallic". Physical Review Letters 111 (11): 116404–1—116404–5. doi:10.1103/PhysRevLett.111.116404.
↑ ^3.0 ^3.1 Bonchev, D.; Kamenska, V. (1981). "Predicting the Properties of the 113–120 Transactinide Elements". The Journal of Physical Chemistry (ACS Publications) 85 (9): 1177–86. doi:10.1021/j150609a021. 6 May 2013 chhà-khon.
↑ Glushko, V. P.; Medvedev, V. A.; Bergma, G. A. (1966). Termicheskie Konstanty Veshchestv (in Russian) 1. Nakua. p. 65.
↑ Greenwood & Earnshaw 2002, p. 28.
↑ Rothe, S.; Andreyev, A. N.; Antalic, S.; Borschevsky, A.; Capponi, L.; Cocolios, T. E.; De Witte, H.; Eliav, E.; et al. (2013). "Measurement of the First Ionization Potential of Astatine by Laser Ionization Spectroscopy". Nature Communications 4: 1–6. PMC 3674244. PMID 23673620. doi:10.1038/ncomms2819.