The Lund research team created ununpentium by bombarding americium(!?!?!) , which has 95 protons, with calcium, which has 20 protons. The bombardment created elements with 115 protons. The atoms were so unstable, however, that they decayed almost instantly. So to demonstrate that they had created element 115, the scientists had to actually measure the photons released by the atoms decay and confirmed that it matched what physics predicts would be the decay pattern for ununpentium."
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