Meitnerium was discovered by Gesellschaft für Schwerionenforschung in 1982. Meitnerium is a chemical element with symbol Mt and atomic number 109. It is an extremely radioactive...
Hassium was discovered by Gesellschaft für Schwerionenforschung in 1984. Hassium is a chemical element with symbol Hs and atomic number 108. It is a highly radioactive...
Bohrium was discovered by Gesellschaft für Schwerionenforschung in 1981. Bohrium is a chemical element with symbol Bh and atomic number 107. It is a highly radioactive...
Seaborgium was discovered at Lawrence Berkeley National Laboratory in 1974. Seaborgium is a synthetic element with symbol Sg and atomic number 106. It is a radioactive...
Dubnium was discovered at Joint Institute for Nuclear Research in 1968. Dubnium is a chemical element with symbol Db and atomic number 105. It is a...
Rutherfordium was discovered at Joint Institute for Nuclear Research in 1964. Rutherfordium is a chemical element with symbol Rf and atomic number 104. It is a...
Lawrencium was discovered at Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research in 1961–1971. Lawrencium is a synthetic chemical element with chemical symbol Lr...
Nobelium was discovered at Joint Institute for Nuclear Research in 1966. Nobelium is a synthetic chemical element with symbol No and atomic number 102. It is...
Mendelevium was discovered at Lawrence Berkeley National Laboratory in 1955. Mendelevium is a synthetic element with chemical symbol Md and atomic number 101. It is a...
Fermium was discovered at Lawrence Berkeley National Laboratory in 1952. Fermium is a synthetic element with symbol Fm and atomic number 100. It is the heaviest...