18281828.................the 3rd number through the 10th number.........like 30 and 13 at the same time.....as in 14.13i...................and a 30/60 right triangle.........

30/60 = 1/2......like the critical line.....45/45 = 1.....the fundamental of the harmonic series...........the stair step line between the metals and non metals is a more of less 45 degree angle.....an oblique angle  to the periodic table.......which is more or less a rectangle.......with a piece missing.........7 + 7 = 14.......like 14 i...........the height of the rectangle.....18 + 18 = 36.....full circle......not bad for a homeless man missing his front teeth, huh??