The answer for the electronic configuration of the following elements are listed below:
1. Na (Sodium) - 1s2 2s2 2p6 3s1.
2. K (Potassium) - 1s2 2s2 2p6 3s2 3p6 4s1
3. I (Iodine) - 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p5
4. Ne (Neon) - 1s2 2s2 2p6
