Question

7. Predict the position of an element having the electronic configuration 1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 3d^ 5 4s^ 1 " (a) (b) Period 4, group 6 Period 3, group 1 (c) Period 6, group 4 (d) Period 4, group 5​

Answer 1

Answer:

(b) period 4, group 6

Explanation:

last election enters into which orbital indicates its

block.

So, this is a d-block element.

So, group no. = total no.of electrons in (n-1) s-orbital + ns-orbital = 6

the last orbit no. indicates period