As we have seen, radium is a chemical element with symbol Ra, an atomic number 88 with an atomic mass of 226 u, and belongs to the family of alkaline […]
In 1898, Marie and Pierre Curie presented to the scientific world the discovery of two new chemical elements, polonium and radium. With their research, Pierre, in particular, found that radiation could kill diseased tissue cells. That is, he began the study of radiotherapy.
An interesting aspect of these elaborate mansions and palaces are that the fireplaces do not burn wood. While at first glance it looks like a normal fireplace, further inspection reveals […]