Question

predict the position of element in the of table satisfying the electronic configaration (n-1)d1ns2 for n=4​

Answer 1

Answer:Here outer most electron enters into the 3d hence the element belongs to d−block, number of group for d−block element= no. of electrons in (n-1)orbital + no. of electrons in n orbital=2+1=3 hence, the element belongs to 3rd group. Here principal quantum number is equal to the period of the element hence the element belongs to 4th period.

Explanation: