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-How did Mendeleev develop his periodic table of the elements?
-What are the groups in Mendeleev’s table?
-Describe the periods in Mendeleev’s table.
-Why was Mendeleev’s periodic table a good model?

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danielskom

Answer:

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

Explanation:

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