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Given below are some of the elements of first group Li, Na, K (Their atomic numbers are 3, 11 , 19 respectively and they belong to 2nd, 3rd and 4th pe

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Given below are some of the elements of first group
Li, Na, K (Their atomic numbers are 3, 11 , 19 respectively and they belong to 2nd, 3rd and 4th period respectively). Arrange these in the decreasing order of metallic character exhibited by them.
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All the three elements belong to the group (1) of alkali metals. Since the metallic character of the elements increases down a group, the decreasing order of metallic character is `KgtNagtLi.`
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