Astatine is one of the least-studied elements of the periodic table, because all isotopes of astatine are unstable, with the longest half-life barely exceeding 8 hours. Thus, only radiochemists at the ...

A team of researchers using the ISOLDE nuclear-physics facility at CERN has measured for the first time the so-called electron affinity of the chemical element astatine, the rarest naturally occurring ...

Astatine is the rarest naturally occurring element on Earth and one of the least studied within the periodic table, mostly because it lives up to its name, which is the Greek word for "unstable." ...

Scientists have carried out ground-breaking experiments to investigate the atomic structure of astatine (atomic number 85), the rarest naturally occurring element on Earth. Through experiments ...

Astatine is among the world’s rarest elements – with a maximum half-life of just eight hours, found in tiny amounts in natural radioactive decay chains, but also produced by bombarding bismuth with ...

This week, we meet the element astatine, whose very name tells us almost half of all that we know about it. Astatine's chemical symbol is At and its chemical number is 85. Its name comes from the ...

Staring at the periodic table of elements was pretty much all I did in science classes but I learned absolutely nothing from it other than Bromine and Barium (but that’s more because of a Google ...

At any given point of time, there is only about 25 g of astatine that occurs naturally on our planet. If that doesn’t wow you, then it’ll help to nudge you along by mentioning that that is less than ...

Excerpted from A Tale of 7 Elements, by Eric Scerri. Reprinted with permission of Oxford University Press, June 2013. The story surrounding element 85 is one of the most complex and interesting among ...

When it comes to the periodic table, the United States really blew its chance to make a name for itself. If you look over a map of all the elements named for cities, states, countries, and continents, ...