The element with a valence electron configuration of 4s24p1 is in group and period .
ANSWER :
Position : Group : III A ( or 13 ) and period : 4 th
From E.C of given element, we found that n = 4 .
n = 4 means given element contain 4 energy shells.
In general , period no. in the periodic table indicates valence energy shell.
Here valence electrons are present in the 4 th energy shell , hence this element will be present in the 4 th period of periodic table.
Given element contain 3 valence electrons. In general, group no. indicates no. of valence electrons present in the given element.
Therefore, given element will be present in III A group ( or 13 th group )
The element with a valence electron configuration of 4s24p1 is in group and period .
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