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OKhat do you mean by metallic character of an element? How does it vary aswe go down a group? Give reason for this variation. |
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Answer» Metallic character of an element means the capacity of elements to lose electron of the outer most shell to attain stability. It vary as we go down in a group as the metallic character or electropositive character increase.Reason: As we move down a group in the periodic table, atomic size gradually increases. As a result, the force of attraction between the nucleus and the valence electrons decreases. Therefore, the tendency of the element to lose electrons to form positive ions increase and hence the metallic or the electropositive character increase as we move down the group. Increase in atomic size predominates the increase in nuclear charge. Like if you find it useful |
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