
This Day in Chemistry: Paul-Émile Lecoq de Boisbaudran
On 18th April, 1838, in Cognac, France, Paul-Émile Lecoq de Boisbaudran was born. Most commonly known for his work in spectroscopy, de Boisbaudran was a French chemist who discovered the elements samarium, dysprosium, europium and gallium. Who Was Paul-Émile Lecoq
















