Difference between revisions of "Template:Infobox astatine"

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|isotopes=
 
|isotopes=
 
{{Elementbox_isotopes_decay2 | mn=210 | sym=At
 
{{Elementbox_isotopes_decay2 | mn=210 | sym=At
  | na=syn | hl=8.1 [[hour|h]]
+
  | 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, 85At
Astatine
Pronunciation/ˈæstətn, -tɪn/ (Template:Respell)
Appearanceblack solid (presumed)
Mass number[210]
Astatine in the periodic table
Template:Periodic table (32 columns, micro) I

At

Uus
poloniumastatineradon
Atomic number (Z)85
Groupgroup 17 (halogens)
Periodperiod 6
Block  p-block
Electron configuration[Xe] 4f14 5d10 6s2 6p5
Electrons per shell2, 8, 18, 32, 18, 7
Physical properties
Phase at STPsolid
Melting point575 K ​(302 °C, ​576 °F)
Boiling point610 K ​(337 °C, ​639 °F)
Heat of vaporization40 kJ/mol
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 361 392 429 475 531 607
Atomic properties
Oxidation states−1, +1, +3, +5, +7[1]
ElectronegativityPauling scale: 2.2
Covalent radius150 pm
Van der Waals radius202 pm
Other properties
Natural occurrencefrom decay
Thermal conductivity1.7 W/(m·K)
Magnetic orderingno data
CAS Number7440-68-8
Main isotopes of astatine
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
210At trace 8.1 h ε, β+ 210Po
α 206Bi
211At syn 7.2 h
Category Category: Astatine
| references

[[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
  1. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.