Question

What is the electron configuration of the calcium ion?​

Answer 1

Answer: Calcium ion Ca² : 1 s² 2s² 2p ^6 (sorry I don't get 6 similar way as 2) 3s² 3p^6

Also 18 electrons, because Calcium donates two 4s electrons

Step-by-step explanation:

Answer 2

[Ar] 4s²
Let me know if you want a step by step!
Hope that helps