"Actinium" Quotes from Famous Books
 ... of the radioactive elements has brought out evidence that all three lines of radioactive descent known to us—i.e. those beginning with uranium, with thorium, and with actinium—alike converge to lead.[1] There are difficulties in the way of believing that all the lead-like atoms so produced ("isotopes" of lead, as Soddy proposes to call them) actually remain as stable lead in the minerals. ...
— The Birth-Time of the World and Other Scientific Essays • J. (John) Joly |
