Physics Today · 1967 · 32 citations · 9 references
Natural SciencesChemistryPhysicsAtomic PhysicsNuclear ChemistryNuclear PhysicsAtomic StructureHeavy-ion PhysicsRadioactive DecayEinsteinium ChemistryFermium ChemistryTransmutation
SYNTHESIS AND IDENTIFICATION of chemical elements with atomic numbers greater than 100 (fermium) have been accomplished with extremely small amounts, literally on a one-atom-at-a-time basis. At the present time these elements can only be formed with accelerated ions, ranging from neon to helium, that bombard targets from uranium to einsteinium. Because of their minuscule transmutation cross sections, such experiments are extremely difficult to perform, and often the results are subject to error and uncertainty of interpretation.
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New Element Mendelevium, Atomic Number 101
A. Ghiorso, B.G. Harvey, Gregory R. Choppin et al. · Physical Review · 1955 · 111 citations · Full text
New Element, Lawrencium, Atomic Number 103
A. Ghiorso, Torbjørn Sikkeland, A. E. Larsh et al. · Physical Review Letters · 1961 · 85 citations · Full text
Isotopes of Element 102 with Mass 251 to 258
A. Ghiorso, Torbjørn Sikkeland, M. Nurmia · Physical Review Letters · 1967 · 80 citations · Full text