Question

Electronic configuration of an element is (2,8,9,1). a. What is atomic number of this element? Name this element. b. Is this configuration correct ? If not, then write correct electronic configuration of this element.

Answer 1

Answer:

atomic number 20

calcium

2 8 8 2

Answer 2

Answer:

Atomic no. 20

Element Name : Calcium

No,this configuration is not correct

Correct configuration for shell (2,8,8,2)

For sub shell :(1s^2,2s^2,2p^6,3s^2,3p^6,4s^2