Template:Infobox astatine/sandbox

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{{Infobox | headerstyle = background:#cccc99 | labelstyle = padding-right:0.75em; | datastyle = | belowstyle = background:#cccc99 | title = Astatine,  85At | image1 = | caption1 = | image2 = | caption2 = | header10 = General properties | label11 = Pronunciation | data11 = /ˈæstətn/ or /ˈæstətɪn/
Template:Respell or Template:Respell | label12 = Proposed formal name | data12 = | label13 = Alternative name | data13 = | label14 = Allotropes | data14 = | label15 = Appearance | data15 = unknown, probably metallic

| label16 = Standard atomic weight (Ar) | data16 = | label17 = Mass number | data17 = | label18 = Abundance | data18 = | data19 = | header20 = Astatine in the periodic table | data22 =

Template:Periodic table (32 columns, micro) I

At

Uus
poloniumastatineradon

| label23 = Atomic number (Z) | data23 = 85

| label24 = Group, period | data24 = group 17 (halogens), period 6 | label25 = Block | data25 = p-block

| label26 = Element category | data26 =   metalloid, sometimes classified as a nonmetal, may be a metal[1]

| label31 = Electron configuration | data31 = [Xe] 4f14 5d10 6s2 6p5

| label32 =

Electrons per shell

| data32 = 2, 8, 18, 32, 18, 7

|header40 = Physical properties | data41 = | data42 =

References

  1. 1.0 1.1 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.
  2. 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. Retrieved 6 May 2013.
  3. 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.

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