Difference between revisions of "Template:Infobox astatine"
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| Line 81: | Line 81: | ||
|isotopes= | |isotopes= | ||
{{Elementbox_isotopes_decay2 | mn=210 | sym=At | {{Elementbox_isotopes_decay2 | mn=210 | sym=At | ||
| − | | na= | + | | na=trace | hl=8.1 [[hour|h]] |
| dm1=[[electron capture|ε]], [[positron decay|β<sup>+</sup>]] | de1=3.981 | pn1=210 | ps1=[[polonium|Po]] | | dm1=[[electron capture|ε]], [[positron decay|β<sup>+</sup>]] | de1=3.981 | pn1=210 | ps1=[[polonium|Po]] | ||
| dm2=[[alpha decay|α]] | de2=5.631 | pn2=206 | ps2=[[bismuth|Bi]] }} | | dm2=[[alpha decay|α]] | de2=5.631 | pn2=206 | ps2=[[bismuth|Bi]] }} | ||
Revision as of 21:08, 7 February 2010
[[Category:Template:Pagetype with short description]]
| Astatine | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pronunciation | /ˈæstətiːn, -tɪn/ | |||||||||||||||||
| Appearance | black solid (presumed) | |||||||||||||||||
| Mass number | [210] | |||||||||||||||||
| Astatine in the periodic table | ||||||||||||||||||
| ||||||||||||||||||
| Atomic number (Z) | 85 | |||||||||||||||||
| Group | group 17 (halogens) | |||||||||||||||||
| Period | period 6 | |||||||||||||||||
| Block | p-block | |||||||||||||||||
| Electron configuration | [Xe] 4f14 5d10 6s2 6p5 | |||||||||||||||||
| Electrons per shell | 2, 8, 18, 32, 18, 7 | |||||||||||||||||
| Physical properties | ||||||||||||||||||
| Phase at STP | solid | |||||||||||||||||
| Melting point | 575 K (302 °C, 576 °F) | |||||||||||||||||
| Boiling point | 610 K (337 °C, 639 °F) | |||||||||||||||||
| Heat of vaporization | 40 kJ/mol | |||||||||||||||||
Vapor pressure
| ||||||||||||||||||
| Atomic properties | ||||||||||||||||||
| Oxidation states | −1, +1, +3, +5, +7[1] | |||||||||||||||||
| Electronegativity | Pauling scale: 2.2 | |||||||||||||||||
| Covalent radius | 150 pm | |||||||||||||||||
| Van der Waals radius | 202 pm | |||||||||||||||||
| Other properties | ||||||||||||||||||
| Natural occurrence | from decay | |||||||||||||||||
| Thermal conductivity | 1.7 W/(m·K) | |||||||||||||||||
| Magnetic ordering | no data | |||||||||||||||||
| CAS Number | 7440-68-8 | |||||||||||||||||
| Main isotopes of astatine | ||||||||||||||||||
| ||||||||||||||||||
[[Category:Infobox templates|Template:Remove first word]]
| data m.p. cat | |||||
|---|---|---|---|---|---|
| in | calc from C | diff | report | ref | |
| C | 302 | — | — | ||
| K | 575 | 575 | 0 | ||
| F | 576 | 576 | 0 | Template:Subpage other | |
| max precision | 0 | ||||
| WD | Template:Wikidata Script error: No such module "EditAtWikidata". | Template:Wikidata | |||
| input | C: 302, K: 575, F: 576 | ||||
| comment | |||||
| data b.p. cat | |||||
|---|---|---|---|---|---|
| in | calc from C | diff | report | ref | |
| C | 337 | — | — | ||
| K | 610 | 610 | 0 | ||
| F | 639 | 639 | 0 | Template:Subpage other | |
| max precision | 0 | ||||
| WD | Template:Wikidata Script error: No such module "EditAtWikidata". | Template:Wikidata | |||
| input | C: 337, K: 610, F: 639 | ||||
| comment | |||||
- ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.