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 |
|---|
|
|
| ngièn-chṳ́ sì-sú |
85 |
|---|
| ngièn-chṳ́-liòng |
(210) |
|---|
| ngièn-su lui-phe̍t |
lui-kîm-su̍k, sometimes classified as a nonmetal, or a metal[2] |
|---|
| 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)[3] |
|---|
| Mol thí-chit |
(At2) 32.94 cm3·mol−1 (predicted)[3] |
|---|
| Yùng-fa-ngie̍t |
ca. 6 kJ·mol−1 |
|---|
| Chîn-fat-ngie̍t |
(At2) 54.39 kJ·mol−1[4] |
|---|
chîn-hi-ap
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| chhai T (K)
|
361
|
392
|
429
|
475
|
531
|
607
| |
| 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[6] |
|---|
| Khiung-ka pan-kang |
150 pm |
|---|
| Van der Waals pan-kang |
202 pm |
|---|
| Miscellanea |
|---|
| Chîn-thí keu-chho |
face-centered cubic (fcc)
(predicted)[2] |
|---|
| 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 |
| iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
| 209At
|
syn
|
5.41 h
|
β+
|
3.486
|
209Po
|
| α
|
5.758
|
205Bi
|
| 210At
|
syn
|
8.1 h
|
β+
|
3.981
|
210Po
|
| α
|
5.632
|
206Bi
|
| 211At
|
syn
|
7.21 h
|
ε
|
0.786
|
211Po
|
| α
|
5.983
|
207Bi
| |
Astatine (Hon-ngî: 砈 è fe̍t-chá 砹 ài) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì At, ngièn-chṳ́ su-muk he 85.
- ↑ 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.
- ↑ 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.
