Question

In Mendeleev's periodic table, why does tellurium with atomic mass = 127.6 appear before

iodine having atomic mass = 126.9​

Answer 1

Answer:

In Mendeleev's periodic table, tellurium with atomic mass \(=127.6\) was placed before iodine (atomic mass \(=126.9u\)) so that elements having similar properties could be grouped together.

Explanation:

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