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Solution - Position of Elements and Trends in the Modern Periodic Table

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ConceptPosition of Elements and Trends in the Modern Periodic Table  

Question

Write the number of periods the Modern Periodic Table has. State the changes in valency and metallic character of elements as we move from left to right in a period. Also state the changes, if any, in the valency and atomic size of elements as we move down a group.

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Period No.

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