Scientists have discovered eight new isotopes -- all of them the heaviest-known forms of their respective elements. Scientists synthesized new sulfur, chlorine, argon, potassium, scandium, and calcium isotopes -- each with record numbers of neutrons.

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Scientists have discovered eight new isotopes -- all of them the heaviest-known forms of their respective elements. Scientists synthesized new sulfur, chlorine, argon, potassium, scandium, and calcium isotopes -- each with record numbers of neutrons.