Niels Bohr was a Danish physicist and philosopher who won the Nobel Prize in Physics in 1922.
Lise Meitner was an Austrian-Swedish physicist who co-discovered nuclear fission and made significant contributions to the development of atomic theory.
Ernest Walton was an Irish physicist and Nobel laureate, most famous for his pioneering work on splitting the atomic nucleus.
Glenn Seaborg was an American chemist, known for his work on nuclear chemistry and discovery of numerous elements, including plutonium.