If you donât want to roll your 403b into a traditional IRA, you also have the option to convert it to a Roth IRA. You will have to pay the appropriate tax when you do convert so seek counsel from a tax professional before doing so.
She then figured out that pitchblende must contain another highly radioactive element, yet unknown. The idea of ââa new element was so exciting to her husband Pierre that he put his own research aside and helped Marie. In 1898, they discovered two new elements-polonium and radium. Polonium was named after Marie's homeland, Poland. Radium got its name from the Latin word for ray. Radium hands from 1940-1950's watches.
In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them.In 1886 French physicist Antoine Bequerel first discovered radioactivity.Thomson student from New Zealand Ernest Rutherford named three types of radiation; alpha, beta and gamma rays.n 1894 Sir William Ramsay and Lord Rayleigh discovered the noble gases, which were added to the periodic table as group 0. In 1897 English physicist J. J. Thomson first discovered electrons; small negatively charged particles in an atom. John Townsend and Robert Millikan determined their exact charge and mass.