Question

Write the number of periods and groups in the modern periodic table. How does the metallic character of Elementary vary on moving from left to right in a period and down a group? Give reason to justify answer.

Answer 1

In modern periodic table no of periods is 7 and no of groups is 18 top to bottom size of element is increased and right to left size of elements decreases but metallic character is increases Aur a acche se knowledge ke liye periodic table ki study karo I hope you like my answer plzzz mark me ☺

Answer 2

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$\huge\underline{\green{Periodic \: table}}$

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▶▶there are 18 groups and 7 periods in modern periodic table

»»»Metallic characters of elements increase down the group because the size of elements increase and nuclear pull decrease thus its easy to loose electrons

»»»Metallic characters dec as one moves across the period because no inc in size is there only electrons inc so nuclear pull is more thus its hard to lose electrons
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