The p orbital can hold up to six electrons. The nex six electrons will go in the 2p orbital. See The Electron Configuration Diagrams For Atoms Of The Elements Electron Configuration Electrons Atom Diagram Ad Browse Discover Thousands of Science Book Titles for Less. . The electronic configuration of Sodium atomic number is 11 is- 1s2 2s2 2p6 3s1 Note- For writing the electronic configuration of elements the Aufbau Principle is used. Sodium is an alkali metal having atomic number 11. Therefore the electronic configuration will be 1 s 2 2 s 2 2 p 6 3 s 1. Electronic configuration of Sodium Na. For this sodium ion the electronic configuration that matches this electron arrangement is answer D 2 8 meaning there are two electrons in the first shell and eight in the second shell. How many electron are in an neutral atom of sodium. This shows that sodium. Sodium atoms have one electron in their valence shell. It ...