Electron Configuration Of Neon Ion. In writing the electron configuration for neon the first two electrons will go in the 1s orbital. The second shell has octet 2s22p6 while the valence shell has 3 electrons 3s23p1.
The electron configuration of al atom is 1s22s22p63s23p1. We add electrons to fill the outermost orbital that is occupied and then add more electrons to the next higher orbital. For example group 1 element sodium na has a single electron in its valence shell with full shells of 2 and 8 electrons beneath.
The remaining six electrons will go in the 2p orbital.
Therefore the ne electron configuration will be 1s22s22p6. Neon is the tenth element with a total of 10 electrons. Since 1s can only hold two electrons the next 2 electrons for ne go in the 2s orbital. The electron configuration of al atom is 1s22s22p63s23p1.