Give the electron configuration for the calcium ion
Stacey Warren - Expert brainly.com
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Well, everytime that you move from the left to the right, you jump orbitals.
S orbitals can only hold 2 electrons. Those, such as Mg (magnesium) has an electron configuration of:
\[1s^2 2s^2 2p^6 3s^2\]
When you move to elements such as bromine, carbon, nitrogen, and those below it, they are in the P-orbital. The p-orbitals can hold up to SIX electrons. Since it is in the farthest, 6th position.
For instance, Neon [Ne] has an electron configuration:
\[1s^2 2s^2 2p^6\]
however, carbon has:
\[1s^2 2s^2 2p^2\]
meaning that it's p-orbital only has 2 electrons in it's orbital shell. Now, with this information, try and do it for Ca (calcium).
I am not sure if your teacher would like, but you can also use:\[[Ne]3s^2\] for magnesium
the [Ne] basically just means represents the electron configuration for everything behind neon, which i wrote before. It's shorrt-hand notation, basically.