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Print/export Download as PDF; ... While the difficulty of obtaining macroscopic samples of synthetic elements in part explains their high value, ... Astatine: 7: 3× ...
[j] The total amount of astatine in the Earth's crust (quoted mass 2.36 × 10 25 grams) [108] is estimated by some to be less than one gram at any given time. [8] Other sources estimate the amount of ephemeral astatine, present on earth at any given moment, to be up to one ounce [ 109 ] (about 28 grams).
When the s.a.w. is in interval-notation, its conventional value is added too. Data is retrieved from central s.a.w. values lists, formatting is by {{Infobox element/standard atomic weight format}} (same as {{infobox element}}). Example:
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Printable version; In other projects Wikimedia Commons; Wikidata item; ... Pages in category "Astatine compounds" The following 7 pages are in this category, out of 7 ...
Printable version; In other projects ... the use row is the value recommended for use in other Wikipedia pages in order to maintain ... 85 At astatine (At 2) use: 503 ...
Abundance (atom fraction) of the chemical elements in Earth's upper continental crust as a function of atomic number; [5] siderophiles shown in yellow Graphs of abundance against atomic number can reveal patterns relating abundance to stellar nucleosynthesis and geochemistry.
Astatine may form bonds to the other chalcogens; these include S 7 At + and At(CSN) − 2 with sulfur, a coordination selenourea compound with selenium, and an astatine–tellurium colloid with tellurium. [36] Structure of astatine monoiodide, one of the astatine interhalogens and the heaviest known diatomic interhalogen.