The team smashed atoms of calcium – with atomic number 20 – into a sheet of americium – with atomic number 95 – and other labs around the world repeated their experiments over the next decade to confirm its existence.

该团队将为 20 的钙粉碎成为 95 的镅片，世界各地的其他实接下来的十年中重复了他们的实以证实其存。