important question of chapter periodic classification of elements
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hey friend...
the important question will be .
1. difference between modern and Mendellev periodic table.
2. difference between the properties of periods and groups.
3. do some HOTS from S.Chand book
the important question will be .
1. difference between modern and Mendellev periodic table.
2. difference between the properties of periods and groups.
3. do some HOTS from S.Chand book
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