Electronic configuration of calcium atom can be written as

Question

Electronic configuration of calcium atom can be written as (A) [Ne] 4p2 (B) [Ar] 4s2 (C) [Ne] 4s2 (D) [Kr] 4P2

Tardigrade Admin · Accepted Answer

To write the electronic configuration of an atom, it is better if we remember the atomic number of noble gases and the orbitals follow the noble gas. The atomic number of

C a

is

20

and its nearest noble gas is argon

(A r = 18)

.
Hence, the electronic configuration of

C a = [A r] 4 s^{2}

.

Q. Electronic configuration of calcium atom can be written as

$[N e] 4 p^{2}$

$[A r] 4 s^{2}$

$[N e] 4 s^{2}$

$[Kr] 4 P^{2}$

To write the electronic configuration of an atom, it is better if we remember the atomic number of noble gases and the orbitals follow the noble gas. The atomic number of $C a$ is $20$ and its nearest noble gas is argon $(A r = 18)$ .
Hence, the electronic configuration of $C a = [A r] 4 s^{2}$ .

Q. Electronic configuration of calcium atom can be written as

[Ne]4p2

[Ar]4s2

[Ne]4s2

[Kr]4P2

To write the electronic configuration of an atom, it is better if we remember the atomic number of noble gases and the orbitals follow the noble gas. The atomic number of Ca is 20 and its nearest noble gas is argon (Ar=18). Hence, the electronic configuration of Ca=[Ar]4s2.

$[N e] 4 p^{2}$

$[A r] 4 s^{2}$

$[N e] 4 s^{2}$

$[Kr] 4 P^{2}$

To write the electronic configuration of an atom, it is better if we remember the atomic number of noble gases and the orbitals follow the noble gas. The atomic number of $C a$ is $20$ and its nearest noble gas is argon $(A r = 18)$ .
Hence, the electronic configuration of $C a = [A r] 4 s^{2}$ .