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Atomic Mass Octaves and Triads
Newlands and Dobereiner. Newlands did the Law of Octaves. Dobereiner did the Triads.
the main defect of' dobereiner's triads is that he put the chemically dissimilar elements in the same triads (dahal.ramchandra@gmail.com)
In 1869, Mendeleev organized his periodic table by increasing atomic mass (atomic weight), using what is called the "law of octaves," by which every 8th element in the sequence shared similar properties. This was first observed by John Newlands in his element table around 1863.
Döbereiner (working after 1815) was the first which found some rules for the rational arrangement of chemical elements. He proposed in 1829 the law of triads - only five triads were discovered.
New land law
Dobereiner's triads were not applicable to all set of elements. The triad could be made only for few elements. So they were rejected.
Atomic Mass Octaves and Triads
atomic mass, triads, and octaves
Newlands and Dobereiner. Newlands did the Law of Octaves. Dobereiner did the Triads.
the main defect of' dobereiner's triads is that he put the chemically dissimilar elements in the same triads (dahal.ramchandra@gmail.com)
The scientist who arranged the elements into triads was Dobereiner.
The two most common triads are the Major and the minor triad. The other two types of triads are diminished and augmented triads.
In 1869, Mendeleev organized his periodic table by increasing atomic mass (atomic weight), using what is called the "law of octaves," by which every 8th element in the sequence shared similar properties. This was first observed by John Newlands in his element table around 1863.
a note
Johann Wolfgang Dobereiner,a German chemist arranged atom in the form of triads in 1817.
A classical accompaniment style based on triads.