Chapter 4 Arrangement of Electrons in Atoms

1
Chapter 4Arrangement of Electrons in Atoms
Section 4-1 The Development of a
New Atomic Model Section 4-2 The Quantum
Model of the Atom Section
4-3 Electron Configurations
2
Section 4-1Light and the New Atomic Model
Ernest Rutherford http//th.physik.uni-frankfurt.d
e/jr/gif/phys/rutherf.jpg
3
According to the accepted knowledge of Physics at
the time of Rutherfords Model of the Atom, an
electron should collapse into the nucleus
A new model was needed to explain this problem.
But it does not collapse!
4
(No Transcript)
5
Studies showed that light had nine specific
characteristics that could help explain how
light related to the structure of an atom.
6
(No Transcript)
7
Example of PEE. Fig. 4-3 pg. 93.
8
(No Transcript)
9
Max Planck - 1900
Max Plank http//th.physik.uni-frankfurt.de/jr/gi
f/phys/planck.jpg
10
Quantum
11
Quantum Equation
12
Einstein - 1905
Albert Einstein http//th.physik.uni-frankfurt.de/
jr/gif/phys/einstein.jpg
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
Fig. 4-5 pg. 95.
17
(No Transcript)
18
Fig. 4-3 pg. 93.
19
The equation that describes the energy contained
within each photon of energy is represented by
the equation
20
The specific line-emission spectrum for hydrogen
is
Fig. 4-7 pg. 95.
21
Niels Bohr - 1913
Niels Bohr http//th.physik.uni-frankfurt.de/jr/g
if/phys/nbohr.jpg
22
Absorption and Emission of Energy in the Bohr
Model
Examples Fig. 4-8 pg. 96. Energy levels
continue on out indefinitely.
23
The complete energy level diagram for a hydrogen
atom showing the three spectral series Lyman,
Balmer, and Paschen.
Fig. 4-6 pg. 97
Friedrich Paschen http//scienceworld.wolfram.com/
biography/Paschen.html
Johan Balmer hhttp//en.wikipedia.org/wiki/Johann_
Jakob_Balmer
Theodore Lyman http//www.encyclopedia.com/doc/1E1
-Lyman-Th.html
24

• Scientist Biographies
• Ernest Rutherford
• http//nobelprize.org/nobel_prizes/chemistry/laure
  ates/1908/rutherford-bio.html
• http//www.chemheritage.org/classroom/chemach/atom
  ic/rutherford.html
• Max Plank
• http//nobelprize.org/nobel_prizes/physics/laureat
  es/1918/planck-bio.html
• http//www.pbs.org/wgbh/aso/databank/entries/bppla
  n.html
• Albert Einseten
• http//nobelprize.org/nobel_prizes/physics/laureat
  es/1921/einstein-bio.html
• http//www.westegg.com/einstein/
• Niels Bohr
• http//nobelprize.org/nobel_prizes/physics/laureat
  es/1922/bohr-bio.html
• http//www.pbs.org/wgbh/aso/databank/entries/bpboh
  r.html
• Theodore Lyman
• http//www.encyclopedia.com/doc/1E1-Lyman-Th.html
• http//www.answers.com/topic/theodore-lyman
• Johan Balmer
• http//en.wikipedia.org/wiki/Johann_Jakob_Balmer
• 2. http//www.britannica.com/EBchecked/topic/507
  92/Johann-Jakob-Balmertabactivechecked2Citems
  checkedtitleJohann20Jakob20Balmer20--20Brita
  nnica20Online20Encyclopedia