Question: Gregory R. Choppin, was an American nuclear chemist and co-discoverer of the element Mendelevium, atomic number 101, another in the discovery group was Glenn Theodore Seaborg, was an American chemist whose involvement in the synthesis, discovery and investigation of ten transuranium elements, earned him a share of which years Nobel Prize in Chemistry?
Sentence (from "Glenn T. Seaborg"): His work in this area also led to his development of the actinide concept and the arrangement of the actinide series in the periodic table of the elements.
Relevant evidence: No