Geometrical illustrations of Newlands' and Mendelejeff's periodic law of the atomic weights of the chemical elements / by Samuel Haughton.

  • Samuel Haughton
Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: Geometrical illustrations of Newlands' and Mendelejeff's periodic law of the atomic weights of the chemical elements / by Samuel Haughton. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    18/20 page 94
    The central elements alternate as before between the lineal and cubic branches, viz.— Mn cubic, Mn (bis) 57 lineal, Cu lineal, Cu (bis) 64 cubic, Zn cubic, Zn (bis) 66 lineal, with a possibility of forming three other elements near them, which have not come into existence. The remaining elements are formed in pairs on the lineal branch, in the two gaps of the cubic branch, where two roots become imagi- nary, viz. Ti | Ya, with a possibility of another element of atomic weight 50, forming a monad on the cubic at the opposite side, and, in the other gap, Ga j Ge | , with the possibility of another monad element of atomic weight 69J at the opposite side. [Note, see p. 96.
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