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Fill in the blanks with the appropriate words in each case Element 'Z' in a sub-group 2[II A] is below element 'Y' in the same sub- group.The element 'Z' will be expected to have atomic size and metallic character than \( y \)

1. lower, more
2. lower, less
3. higher, more
4. higher, less

Correct answer: higher, more

Solution

In Group 2, atomic size increases down the group because additional electron shells are added. Metallic character also increases down the group since outer electrons are held less tightly and are lost more easily.

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