Predict theposition of theelement in theperiodic tablesatisfyingthe electronic configuration(n-1) d^(1) ns^(2) " for " n=4

Predict theposition of theelement in theperiodic tablesatisfyingthe el

1.	Predict theposition of theelement in theperiodic tablesatisfyingthe electronic configuration(n-1) d^(1) ns^(2) " for " n=4
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 thenthshell = 1+2=3