Did dobereiner\'s triads also exist in the columns of newlands octaves

1.	Did dobereiner\'s triads also exist in the columns of newlands octaves? Compare and find out.
Answer» Yes .In dobereiner trade ,lithium, sodium,potassium occure and have similar chemicals property. It also occur in new land of octave property of 8th element sodium is same as the property of 1st element lithium

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