why r there 2 sub-divisions in each group of mendeleevs periodic table?
Asked by 2joseph | 23rd Oct, 2009, 06:29: AM
In periodic table of mendeleevs there are only 8 groups were selected so,there are 2 sub-divisions in each group of mendeleevs periodic table.
Answered by | 26th Oct, 2009, 10:44: AM
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