Question

Get notes from NCERT on doberiner's law of triads.
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Answer 1

Answer:

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Answer 2

Answer:

Dobereiner law of triads states that the average of the atomic masses of the first and third element in a triad will be roughly equal to the atomic mass of the second element in that triad. ... The atomic mass of calcium is 40g/mol. The atomic mass of strontium is 88g/mol. The atomic mass of barium is 137g/mol.

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