describe the Mendeleev's periodic table, its achievement and limitation?
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ACHIEVEMENTS OF MENDELEEV PERIODIC
TABLE
He arranged elements in sub groups A andB
according to their properties and the horizontal
rows are known as periods
LIMITATIONS
tellirium atomic weight 127.6 precedes iodine 126.9
dissimilar elements were placed together
TABLE
He arranged elements in sub groups A andB
according to their properties and the horizontal
rows are known as periods
LIMITATIONS
tellirium atomic weight 127.6 precedes iodine 126.9
dissimilar elements were placed together
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