Show hafnium atoms atom weighed nils bohr discoverer of lie new element hafnium has determined its atomic weight the element which was named in honor of tile city of copenhagen Is still not completely isolated so but tile professors efforts in this direction are nearing completion the connection of tue the element with zirconium a kindred element has bag made investigations difficult but professor bohr has been able to ascertain that the atomic weight lies between 1 and five of 82 92 elements existent ro rc euln to be discovered As a result or of hla his experiments professor bohr has discovered that hafnium Is impenetrable by rays lie ile asserts it has the good qualities of bismuth which Is used in connection connect iol with ray experiments but bu none of the bad ones and the discovery Is expected to be of considerable value to medical be science lence |