Slide 1

From Bohr's Ringsto Orbitals

1234Within an energy level (n = 1, 2, 3, 4), there exists n types of orbitals and n2 sublevels.nOrbital types1One s-orbital234One s-orbitalThree p-orbitalsOne s-orbitalThree p-orbitalsFive d-orbitalsOne s-orbitalSeven f-orbitalsThree p-orbitalsFive d-orbitals

Within an energy level (n = 1, 2, 3, 4), there exists n types of orbitals and n2 sublevels.nOrbital types1One s-orbital234One s-orbitalThree p-orbitalsOne s-orbitalThree p-orbitalsFive d-orbitalsOne s-orbitalSeven f-orbitalsThree p-orbitalsFive d-orbitalsNote: Each orbital can hold two electrons#eTotal #e in energy level, n2 e2 e3 x 2 e = 6 e2 e3 x 2 e = 6 e3 x 2 e = 6 e5 x 2 e = 10 e5 x 2 e = 10 e2 e7 x 2 e = 14 e281832

Quantum mechanical model: 90% probability of finding electron within 3D orbital with a maximum energy defined by the principal quantum number, n. (n = the row number on the periodic table)

yxzObj. 2.01An s-orbital is shaped like a sphere

xyzxyzxyzThe three p-orbitals are oriented along the x, y and z axes and can hold a maximum of 2 electrons each.Its been suggested that the p-orbitals look like peanuts if that helps you to remember their shape.

The d-orbitalsdxydxzdyzEven though the d-orbitals look like two p-orbitals, it is important to remember that each orbital can hold a maximum of 2 electrons regardless of how many lobes it has.dx2-y2dz2

The freaky (or flowery) f-orbitals

And after spending YEARS looking for themthe nine g-orbitals!!!