What does «desintegración radiactiva» mean in Spanish?
- Radioactive decay occurs in some chemical elements. Most chemical elements are stable. Chemical elements are made up of atoms. In stable elements, the atom remains the same. Even in a chemical reaction, the atoms themselves do not change. In the 19th century, Henri Becquerel discovered that some chemical elements have atoms that change. In 1898, Marie and Pierre Curie called this phenomenon radioactive decay. Becquerel and the Curies were awarded the Nobel Prize in Physics for this discovery in 1903.