2 Bohr’s model…Electrons are found in specific circular paths (orbits) around the nucleus.The electrons have fixed energies called energy levels. (like rungs on a ladder)The amount of energy required to move an electron to another energy level is called a quantum.
3 The Quantum Mechanical model It is based on the energy and possible location of an electron.how likely it is to find an electron is described in terms of probability. (ie. Propeller blades)Based on work done by Shrodinger…
5 Atomic OrbitalsThe energy levels of electrons are labeled by principal quantum numbers (n)Each energy sublevel corresponds to an orbital of a different shape, which describes where the electron is likely to be found.
23 Summary: p orbitals and d orbitals 22/09/99p orbitals look like a dumbell with 3 orientations: px, py, pz (“p sub z”).Four of the d orbitals resemble two dumbells in a clover shape. The last d orbital resembles a p orbital with a donut wrapped around the middle.
24 Principle Quantum # (n) 1st Quantum #Principle Quantum #(n)Specifies the energy level that the electron is on.
25 Specifies the shape of the sub level . 2nd Quantum #(l)Specifies the shape of the sub level .
26 The 3rd (m) and 4th quantum numbers (s) … Deals with the orbital within the sublevel and the spin of the electron.
27 Four Energy Sub-Levels Energy LevelSub-levelType of sub# of OrbitalssSphere21pDumbbell63d4-Lobed105f6-8 Lobed147