Which of these women was an important physicist?

Marie Curie, Physicist and Chemist. Chief among Curie’s many achievements include discovering radioactivity and inventing a mobile X-ray unit that was employed during World War I. With her husband, Pierre, Curie also discovered the radioactive elements polonium and radium — and developed techniques for isolating radioactive isotopes. In 1903, Curie became the first woman to win a Nobel Prize. After her first win in physics, she later earned an award in chemistry — making her the first person to have been awarded twice — and one of the most regarded women in science.

Source: Discover Magazine