Hydrogen-7 7H consists of a proton and six neutrons. It was first synthesised in 2003 by a group of Russian, Japanese and French scientists at RIKENs RI Beam Science Laboratory by bombarding hydrogen with helium-8 atoms. In the resulting reaction, all six of the helium-8s neutrons were donated to the hydrogens nucleus. The two remaining protons were detected by the RIKEN telescope, a device composed of several layers of sensors, positioned behind the target of the RI Beam cyclotron. Hydrogen-7 has a half life of 2.3×10−23 seconds.
Posted on: Sat, 13 Dec 2014 12:08:10 +0000
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