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0.1 In the long form of periodic table the total number of periods is....b)c) 8 a) 9 |
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Answer» Answer:b)7Explanation:Thelong formof theperiodic tableis based upon the electronic configuration of the elements. It is the presentformor the modernperiodic tableof elements. The modernperiodic tableof elements consists of 18 vertical columns and 7 horizontal rows.Thus,Long form of the periodic table contains seven periods as the last element contains7th7thvalence shell |
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