What are five key accomplishments of mary or pier curie

1. Discovery of the elements Radium and Polonium 
2. Marie: First woman to be awarded the Nobel Prize 
3. Discovered that pitchblende had more radioactivity than the isolated elements polonium and radium 
4. Marie: Assisted with making portable x-ray machines, dubbed "Little Curies." 
5. Marie: Took over her late husband's job as a professor.