... (1815)
According to...d.
Newland’s Octaves...es
Newland states th...periodic functions of...physical and chemical...s ERa-aluminium (G...a) and EKa-silicon (Ge)...weight. = 58.9) has been plac...18 groups and seven p...ash; 54Xe) conta...(a) s-block elem..., XA and XB ...