Which one of thefollowingpairswouldhave a larger size ? Explain (i) K " or" K^(+) (ii) Br " or" Br^(-)(iii) O^(2-) " or" F^(-)(iv)Li^(+)" or" Na^(+) (v) P " or"As (vi) Na^(+)" or" Mg^(2+)

Which one of thefollowingpairswouldhave a larger size ? Explain (i) K

1.	Which one of thefollowingpairswouldhave a larger size ? Explain (i) K " or" K^(+) (ii) Br " or" Br^(-)(iii) O^(2-) " or" F^(-)(iv)Li^(+)" or" Na^(+) (v) P " or"As (vi) Na^(+)" or" Mg^(2+)
Answer» Solution :Forn=4the electronic CONFIGURATION = (4-1) `d^(1) 4s^(2) =3d^(1) 4s^(2)`. Theelementcorrespondingto this CONFIGURATIONS is scandium whichis a d- blockelement. Group NUMBER = Noof ELECTRONS in (n-1) d subshell + No. of electrons in the