OAK RIDGE, Tenn., June 25, 1998 -- Physicists from the Department of Energy's Oak Ridge Institute for Science and Education (ORISE) and Oak Ridge National Laboratory (ORNL) have identified the shortest-lived proton emitter known--the 33rd isotope of thulium (Tm), a bright, silvery rare-earth element that was discovered almost 120 years ago in erbium ore in Sweden. They also found that its nucleus is shaped like a soccer ball, not like a football, as previously thought.
The above story is based on materials provided by Oak Ridge National Laboratory. Note: Materials may be edited for content and length.
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