Sublevel (d) has 5 orbitals.
2- Sublevel (f) has 7 orbitals.
3- Orbitals of the same sub level are equal in energy and shape.
Ex: px = py = pz
4- No of orbitals in each E. level = square order of E. level = n2.
1- Spin Q. No (ms):
· Detects the direction in which the electron spins around its axis during its rotation around the nucleus.
· Each orbital can be saturated by 2 electrons, one electron spins around its axis clockwise while the other electron spins anti – clockwise in order to from 2 opposite magnetic fields to decrease the force of repulsion between them which keep the atom stable.
· It has only two possible values + 1/2 – 1/2
Give reason: Each orbital carries 2 electrons although they are negatively charged.
Summary of the relationship between the principle E.L, sub levels orbitals and no of electrons:
1- No of energy sublevels = order of principle level (n).
2- No of orbitals within a principle level = square the no of the level (n2).
3- No of electrons occupying a given E. level = two times the square order of this