1. Quantum Electron Configurations

2. Erwin Schrödinger
1887 - 1961

3. The Schrödinger Equation

4. Werner Heisenberg
1901 – 1976

5. Bohr Theory
The electron is a particle that must be in orbital in the atom.
Quantum Theory
The electron is like a cloud of negative energy or a wave.
Orbitals are areas in 3D space where the electrons most probably are.
The energy of the electron is in its vibrational modes- like notes on a guitar string.
Photons are produced when high energy modes change to lower energy modes

6. S orbitals
Each orbital holds 2 electrons

7. S orbitals S

8. Animation P orbitals There are 3 suborbitals Each contains 2 electrons
Total electrons = 6
Animation

9. P Orbitals

10. P Orbitals

11. D orbitals
There are 5 suborbitals
Each contains 2 electrons
Total electrons = 10

12. D orbitals

13. F orbitals
There are 7 suborbitals
Each contains 2 electrons
Total electrons = 14

14. F orbitals

15. Quantum Periodic Table
1s2 F
2s2
2p5
Count the electrons in each different orbital type
until you get to Fluorine. Put in order of lowest to
highest energy level.

16. 1. F The Electron Configuration
1s22s22p5
Principle Quantum Number
Number of Electrons in the Orbital
Orbital Type- s, p, d, or f

17. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2 Ca
4s2

18. 2. Ca
1s22s22p63s23p64s2
1s2 2s22p6 3s23p6 4s2
Simplify to a Bohr electron configuration

19. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2 Cu
3d9
4s2

20. 3. Cu
1s22s22p63s23p63d94s2
Simplify to a Bohr electron configuration
1s2 2s22p6 3s23p63d9 4s2

21. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2
4p6 Kr
3d10
4s2
Count the electrons in each different orbital type
until you get to Kr. Put in order of lowest to
highest energy level.

22. 4. Kr
1s22s22p63s23p63d104s24p6
Simplify to a Bohr electron configuration
1s2 2s22p6 3s23p63d10 4s24p6

23. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2
4p6
3d10
4s2
5s2
4d4 Mo

24. 4. Mo
1s22s22p63s23p63d104s24p64d45s2

25. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2
4p6
3d10
4s2
5s2
4d10
5p5 I

26. 5. I
1s22s22p63s23p63d104s24p64d105s25p5
Simplify to a Bohr electron configuration
1s2 2s22p6 3s23p63d10 4s24p64d10 5s25p5

27. Why does the 4s fill before the 3d?4p 3d 4s 3p 3s

29. Quantum Periodic Table
1s2
2s2
2p6
3p6
3s2
4p6
4s2
3d10
5s2
4d10
5p6
Ba2+

30. 6. Ba2+
1s22s22p63s23p63d104s24p64d105s25p6 Xe I-
The above chemical species are isoelectronic- same
electron configuration

32. Ishihara Test for Colour Blindness – if you can read all of the numbers you have good colour vision
Atomic Theory Song