Out of N and K which will have stronger metallic character and why
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On going down the group from Na to K, the atomic radius increases, as a result nucleus attraction on outermost electron decreases as distance from nucleus increases, so less energy is required to remove outermost electron from K as compared to Na.
Therefore K has more electropositive nature (tendency to form cation easily) than Na, i.e.
K is more metallic than Na.
Therefore K has more electropositive nature (tendency to form cation easily) than Na, i.e.
K is more metallic than Na.
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