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Lawrencium (Lr): Fun Facts and Information About the Element

What is the symbol? Lr
What is the atomic number? 103
What is the atomic weight? 262
What is the melting point in Celsius? 1627
What year was it discovered? 1961
Who discovered the element? ” Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer”
What group is the element in? 102
What is the ionization energy? 4.9
What element category is it in? Actinoids

Where is Lawrencium Found?

In 1965, the Dubna workers found a longer-lived lawrencium isotope, 256Lr, with a half-life of 35 s. In 1968, Thiorso and associates at Berkeley used a few atoms of this isotope to study the oxidation behavior of lawrencium. Using solvent extraction techniques and working very rapidly, they extracted lawrencium ions from a buffered aqueous solution into an organic solvent.