Calcium, Strontium and Barium form a Dobereiner’s triad. The atomic masses of calcium and Barium are 40 and 137 respectively. Predict the atomic mass of strontium

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Abhishek Mishra

2 years ago

According to Dobereiner’s triad, atomic mass of strontium is the arithmetic means of Ca and Ba as strontium lies between Ca and Ba. Atomic mass of Sr = 40+137 / 2=177 / 2=88.5

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