• 43     technetium (1936) *
• 85     astatine (1940)
• 93     neptunium (1940)
• 94     plutonium (1940)
• 95     americium (1944) **
• 96     curium  (1944) **
• 97     berkelium (1949)
• 98     californium (1950)
• 99     einsteinium (1952)
• 100   fermium (1952)
• 101   mendelevium (1955)
• 102   nobelium (1958)
• 103   lawrencium (1961)
• 104   rutherfordium (1969)
• 105   hahnium (1970)
• 106   seaborgium (1974)

* Discovered in Italy using a sample from Berkeley cyclotron bombardment

** Discovered in Chicago by Berkeley team

Additional information:

• Glenn Seaborg website