Francium was discovered in 1939 by Marguerite Perey at the Curie institute in Paris. Perey was interested in the decay of actinium to produce a new element which she named after her home country, France. It was the last natural element to be discovered as anything discovered after this is a synthetic element that is made in the lab. Due to its radioactivity Francium rapidly decays meaning it is very rare. It is a solid metal at room temperature and it has a melting point of -27°c and a boiling point of 677°c. Only a few atoms of Francium have ever been isolated as creating or obtaining a large sample is very difficult. It is not known wether it would be a solid or a liquid at room temperature or what colour it would be. Francium has no commercial uses but is commonly used in subatomic experiments.