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State one example of a Dobereiner's …

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State one example of a Dobereiner's triad, showing in it that the atomic mass of middle element is half-way b/w those of the other two.
  • 3 answers

Sanskar Chugh 6 years, 3 months ago

Continue 7 23 39 39+7=46 46/2=23

Sanskar Chugh 6 years, 3 months ago

Li NA K 7 23 39
<atomic mass of calcium is 40 ...strontium is 88 and bariun is 137....if we find the average of 137+40/2we get 88.5 which is the atomic mass of sr....hence proved>
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