Question: What are the names of the entities that Glenn T. Seaborg found or created?
Answers:
answer_text: Actinide concept
answer_text: mendelevium
answer_text: berkelium
answer_text: curium
answer_text: plutonium
answer_text: einsteinium
answer_text: americium
answer_text: extended periodic table
answer_text: fermium
answer_text: caesium-137