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a) How do second group elements in the p...

a) How do second group elements in the periodic table differ from 17th group elements in the outer most electronic configuration?
b) Elements of which group show more metallic nature? Why?

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a) In .2overset (nd). group elements, there are two electrons in the outermost shell. But in the .17 overset (th). group there are 7 electrons in the outermost shell.
b) Second group elements .2overset(nd). have larger atom then .17overset(th). group elements.
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