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Astatine, 85 Ki-pún sèng-chit Miâ, hû-hō
astatine, At Gōa-hêng
unknown, probably metallic Astatine tī chiu-kî-piáu lāi ê ūi-tì
Goân-chú-hoan
85 Goân-chú-liōng
(210) Goân-sò͘ lūi-pia̍t
lūi-kim-sio̍k metal [ 2] Cho̍k , hun-khu
17 cho̍k p khu Chiu-kî
tē 6 chiu-kî Tiān-chú pâi-lia̍t
[Xe ] 4f14 5d10 6s2 6p5 per shell
2, 8, 18, 32, 18, 7 Bu̍t-lí sèng-chit Siòng
kò͘-thé Iûⁿ-tiám
575 K (302 °C, 576 °F) Hut-tiám
610 K (337 °C, 639 °F) Bi̍t-tō͘ (sek-un )
(At2 ) 6.35±0.15 g·cm−3 (predicted) [ 3] Mol thé-chek
(At2 ) 32.94 cm3 −1 (predicted) [ 3] Iûⁿ-hoà-jia̍t
ca. 6 kJ·mol−1 Cheng-hoat-jia̍t
(At2 ) 54.39 kJ·mol−1 [ 4]
cheng-khì-ap
P (Pa)
1
10
100
1 k
10 k
100 k
tī T (K)
361
392
429
475
531
607
Goân-chú sèng-chit Sng-hòa-sò͘
−1 , +1 , +3, +5, +7 Tiān-hū-tō͘
Pauling scale: 2.2 Tiān-lī-lêng
1st: 899.003 kJ·mol−1 [ 6] Kiōng-kè pòaⁿ-kèng
150 pm Van der Waals pòaⁿ-kèng
202 pm Cha̍p-lio̍k Chiⁿ-thé kò͘-chō
face-centered cubic (fcc)(predicted) [ 2] Jia̍t-thoân-tō-lu̍t
1.7 W·m−1 −1 CAS teng-kì pian-hō
7440-68-8 Le̍k-sú Hō-miâ
after Greek astatos (αστατος), meaning "unstable" Hoat-hiān
Dale R. Corson , Kenneth Ross MacKenzie , Emilio Segrè (1940) Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: astatine ê tông-ūi-sò͘
iso
NA
half-life
DM
DE (MeV ) DP
209 At
syn
5.41 h
β+
3.486
209 Po
α
5.758
205 Bi
210 At
syn
8.1 h
β+
3.981
210 Po
α
5.632
206 Bi
211 At
syn
7.21 h
ε
0.786
211 Po
α
5.983
207 Bi
Astatine (Óa-im: "a-suh-tá-tín hoà-ha̍k goân-sò͘ . I ê goân-chú-hoan sī 85, hoà-ha̍k hû-hō sī At.
↑ 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 khòaⁿ--ê . ↑ Glushko, V. P.; Medvedev, V. A.; Bergma, G. A. (1966). Termicheskie Konstanty Veshchestv (ēng Russian). 1 . Nakua. p. 65. ↑ 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. doi :10.1038/ncomms2819 . PMC 3674244 PMID 23673620 .
. PMID 23673620.
