What was the name of Marie Curie's second Nobel Prize?

Marie Curie’s second Nobel Prize was the Nobel Prize in Chemistry, awarded in 1911. Her first Nobel Prize, shared in 1903, was the Nobel Prize in Physics.

The 1911 Chemistry award recognized her discovery of the elements polonium and radium, her isolation of radium, and her study of radium’s properties and compounds. The work grew out of painstaking experiments with tonnes of pitchblende residue, from which the Curies separated tiny quantities of radioactive substances.

This second prize made Curie the first person to receive two Nobel Prizes. It also reflected a distinction between her two major achievements: the 1903 Physics prize concerned research into radioactivity, while the 1911 Chemistry prize recognized the identification and chemical investigation of new elements.

The award is sometimes confused with the Nobel Prize in Physics because radioactivity was central to Curie’s career. Both subjects were involved, but Chemistry is the single canonical answer for her second Nobel.