This element is still available. Select an option below to secure it.
|Click here to secure it now
Proceed to the donation page for this element.
|Click here to pledge in instalments
Gifts may be pledged over a period of two to five years and made in as many split-payments.
Astatine is a highly radioactive element and it is the heaviest known halogen. Its chemical properties are believed to be similar to those of iodine. Is has been little researched because all its isotopes have short half-lives. All that is known about the element has been estimated from knowing its position in the periodic table below iodine and by studying its chemistry in extreme diluted solutions.
Astatine is never encountered outside nuclear facilities or research laboratories. Total world production of astatine to date is estimated to be less than a millionth of a gram, and virtually all of this has now decayed away.