Question

electronic configuration of element having 24 electrons and 25 electrons respectively

Answer 1

Answer:

please mark as briliant answer

____________________________

24-- 2.8.8.6

and

25--2.8.8.7

Answer 2

Electronic configuration of Element having 24 electrons

Element : Chromium

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6} 4s^{1}3d^{5}$

4s is filled before 3d because of Aufbau principle.

We expect 2 electrons in 4s subshell, but half filled configuration is more stable. Hence, The configuration is

$4s^{1}3d^{5}$

Electronic configuration of Element having 25 electrons

Element : Manganese

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6} 4s^{2}3d^{5}$

4s is filled before 3d because of Aufbau principle.

Hence the above configuration.