In the example, which is Na Wah electron lens is equal to 1., as part of an electron is an electron lens Cl-is equal to 7, thus making Na and Cl are Wah electron equal to 8 blades formed as compounds it all new.
Na valence electrons from the sample, which is equal to 1, the electrons of the valence electrons Cl = 7, making Na and Cl have 8 valence electrons of the ionic compound.
Examples from Na which has วาเลนซ์อิเล็กตรอน was 1 give electron to Cl with valence electron was 7 made Na and Cl have วาเลนซ์อิเล็กตรอน was 8 is the ionic compound.