This includes the most recently announced element of all, element 117 that was synthesised in April 2010. This podcast is about one of these elements, number 107 in the periodic table, called bohrium.
It's abundance in the earth's crust is 0.004 ppm. 100% of gold found naturally is isotope Au-197. 28 other isotopes can be produced artificially and are all radioactive. Gold along with silver and ...