...d.
Newland’s Octaves... (1864) (Law of Octaves
Newland states th...periodic functions of...physical and chemical...s ERa4">-aluminium (G...a) and EKa4">-silicon (Ge)...18 groups and seven periods i...sh; 54Xe) contai...(a) s4">-block elem...wo series 4f (lanthan..., XA and XB ...