Question

did dobereiners triads also exist in newlands octaves. quickly explain

Answer 1

hii friend

Yes, Dobereiner's triads also exist in the columns of Newlands Octaves. For example, the second column ofNewlands classification has the elements lithium (Li), sodium (Na) and Potassium (K), which constitute aDobereiner's triad.

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Answer 2

Yes, following triads can be identified:

Li, Na, K

Be, Mg, Ca

The atomic mass of middle atom in the above triads is approximately equal to the average mass of elements on the left and right hand side.