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Assertion:In the present form of periodic table,the period number corresponds to the highest principal quantum number of the elements in the period.Reason:Elements having similar outer electronic configuration in their atoms belongs to same period.A. If both assertion and reason is the correct explanation of assertion.B. If both assertion and reason is the correct explanation of assertion.C. If both assertion and reason is the correct explanation of assertion.D. If both assertion and reason is the correct explanation of assertion. |
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Answer» Correct Answer - C Elements having similar outer electronic configurations in their atoms are arranged in vertical column,called groups or famileis. |
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