Bohr discovered that the number of electrons in an energy level is equal to 2n^2, where "n" is the energy level of the atom. The first energy level is 2 (1)^2= 2 electrons The second energy level is...
The maximum number is given by 2n^2 (2 times n squared) where n is the energy level. So: 1st energy level - 2 electrons 2nd energy level - 8 electrons 3rd energy level - 18 electrons 4th energy level...