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Identify Dobereiner's triads from the fo...

Identify Dobereiner's triads from the following groups of elements having similar chemical properties.
S(32.1), Se(79.0), Te(127.6)

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Dobereiner's triads are S (32.1), Se(79.0), Te(127.6) and Be(9.0), Mg(24.3), Ca(40.1).
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TARGET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -Apply your knowledge
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