Electron configuration of calcium is ?

(A r) 4 s^{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(N e) 3 s^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(A r) 4 s^{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

(K r) 4 s^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $(A r) 4 s^{2}$
An atomic number of Calcium $C a$ =20.
Therefore the electronic configuration of calcium is ${1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2}$
The nearest noble configuration is ${1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6}$ =18(Argon)
$C a$ =[Ar] ${4 s}^{2}$

Suggest Corrections

Similar questions

The correct electronic configuration of calcium(Atomic no. - 20) is :

p = 20, n = 20

Join BYJU'S Learning Program