Z=99): Einsteinium-252; 471.7 days
*(Fm, Z=100): Fermium-257; 100.5 days
*(Md, Z=101): Mendelevium-258; 51.5 days
*(Lr, Z=103): Lawrencium-262; 3.6 hours = 216 minutes
*(No, Z=102): Nobelium-259; 58 minutes
*(Rf, Z=104): Rutherfordium-263; approximately 10 minutes
*(Sg,