Intra-atomic Charge (van der Broek) with Intra-atomic Charge (Soddy) with The Structure of the Atom, (Rutherford) in Nature, 92, 1913-1914; pp. 423; pp. 399-400; pp. 372-373 and pp. 476-478.
London: Macmillan. First edition of a 1911 letter to Nature in which Antonius van den Broek proposed what is perhaps the most important single innovation within the periodic table: that elements are defined by the number of charges in the nucleus, and that the periodic table should be sequenced by..... More