KnowraAstatineLinked fromLinked fromThe 7 pages that link to Astatine, each with the reason it gives.All 7Broader topic 3Related 1Compared with 3IodineCompared with: Astatine lies below iodine in Group 17 but is far rarer and less chemically characterized.BromineCompared with: Astatine is the heavier group neighbor, but its scarcity and radioactivity contrast with bromine’s stable natural abundance.HalogenBroader topic: Its scarcity and short-lived isotopes make its chemistry difficult to study directly.MetalloidCompared with: Astatine lies near the metalloid boundary but is usually classified as a halogen.Element discoveryBroader topic: Its discovery showed that an element missing from nature could be made in a particle accelerator.Emilio SegrèBroader topic: Segrè, Dale R. Corson, and Kenneth Ross MacKenzie produced and identified it in 1940.FranciumRelated: Astatine is francium’s neighboring element and is also exceptionally scarce and radioactive.