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Classification of Modern Periodic Table

What is meant...

Question

What is meant by a group in the periodic table?

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Solution

In the periodic table, there are 18 vertical columns, referred to as groups. A group contains elements with same number of electrons in their outermost shell due to which they show similar properties.

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Q. (a) What is a group in the periodic table? In which part of a group would you separately expect the elements to have (i) the greatest metallic character (ii) the largest atomic size?
(b) In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group.
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(e) What are the advantages of the periodic table?

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