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... elements were known and their relative Atomic Masses could be calculated more accurately Newlands Octaves In 1866, Newlands came up with the law of Octaves. This idea was more developed than Dobereiners Triads. Newlands suggested that when the elements were arranged in the order of Relative Atomic Mass (below), any one element had properties similar to those of the element eight places in front of it and eight places behind it in the table. Newlands' Octaves H Li Ga B C N O F Na Mg Al Si P S Cl K Ca Cr Ti Mn Fe Co,Ni Cu Zn Y In As Se Br Rb Sr Ce,La Zr Di,Mo Ro,Ru Pd Ag Cd U Sn Sb Te I Cs Ba,V Ta W Nb Au Pt,Ir Tl Pb Th Hg Bi Cs Newlands Octaves: The eighth element is a kind of repetition of the first like the eighth note of an octave in music. His work wasn't very well received by the scientific community because there weren't any empty spaces his table which assumed that all the elements had been discovered even though 4 elements had been discovered a few years before his work was published so the discovery of a new element could throw the idea out of the window. In ...