List the electron shell and the number of electrons in each shell

If you are only talking about the first 20 or so elements there is 2 in the first shell, 8 in the second and 8 in the third, but the 3rd shell can hold 18 but for early elements it jumps to the fourth shell after 8

2, 8, 8, 16 and 32. They are the electron level le she'll beers and each never represents how much can fit in