Question

lanthanum ka electric configuration​

Answer 1

Heya friend,

Electric configuration for Lanthanum(Atomic no. :- 57) is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d1 6s2.

Noble gas configuration for lanthanum :- [Xe] 5d1 6s2.

Hope it helps...

#Phenomenal...

Answer 2

$<marquee><b>Bonjour !!</b>$

The electronic configuration of Lanthanum is

$1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^6 4d^{10} 5s^2 5p^6 5d^1 6s^2$

It can also be written as
[Xe] 5d¹ 6s²