Board Thread:Off Topic/@comment-26869370-20161226010442/@comment-26869370-20161226192743

The inner shell of an atom has 4 atoms, the second shell has 14, the third shell has 20, and everything after the 4th shell has 30. So the first row of the periodic table has 4 elements, the second row has 14, the third row has 20, and the 4th row (and all rwos after that) have 30.