CrosswordOpener.com - we know the word that you can`t guess In case of any inconvenience..
1935 chemistry co-Nobelist ___ -Curie
Else clues• He and his wife discovered how to synthesize new radioactive elements (1900-1958)
• French nuclear physicist who was Marie Curie's assistant and who worked with Marie Curie's daughter who he married (taking the name Joliot-Curie)