ATOMIC STRUCTURE3.3 - Arrangement of Electrons
ATOMIC STRUCTURE3.3.3 - The Quantum Mechanical Model of the Atom
Summary of information about the Distribution of Electrons in each Principal Energy Level
| Principal Energy Level, n |
Number
of Sublevels |
Type
of Atomic Orbital |
Maximum Number of Electrons per Sublevel |
Maximum Total Number of Electrons  |
|
| 1 | 1 | 1s | 1 | 1 orbital x 2 electrons/orbital = 2 | 2 * |
| 2 | 2 | 2s 2p |
1 3 |
1 orbital x 2 electrons/orbital
= 2 3 orbitals x 2 electrons/orbital = 6 |
2 + 6 = 8 * |
| 3 | 3 | 3s 3p 3d |
1 3 5 |
1 orbital x 2 electrons/orbital
= 2 3 orbitals x 2 electrons/orbital = 6 5 orbitals x 2 electrons/orbital = 10 |
2 + 6 + 10 =18 * |
| 4 | 4 | 4s 4p 4d 4f |
1 3 5 7 |
1 orbital x 2 electrons/orbital
= 2 3 orbitals x 2 electrons/orbital = 6 5 orbitals x 2 electrons/orbital = 10 7 orbitals x 2 electrons/orbital = 14 |
2 + 6 + 10 + 14 = 32 * |
* - Numbers on the last column is equivalent to the prediction using the formula 2n2
