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2. GROUP 2
MUQADDAS
ZULFIQAR
KHANSA
ABBAS
ZAYNAB
ABDISAMAD
AISHA ABID

3. Points of discussion:
1. Rutherford’s atomic
model’s flaws.
2. Bohr’s atomic model.
3.Quiz competition.

4. RUTHERFORD’S ATOMIC
MODEL:

5. DEFECT:0
1

6. DEFECT:02

7. EMISSIONEMISSION
ANDAND
APSORPTIOAPSORPTIO
NN

8. NUCLEUS

9. • FOUNDER
OF ATOMIC
MODEL.
• HIS
QUOTATION
• EDUCATION

11. Nucleus
Electron
Orbit
Energy Levels

14. Explanation:Explanation:
Bohr’s atomic theory isn't a lawBohr’s atomic theory isn't a law
yet. If anyone comes andyet. If anyone comes and
researches more about it, thenresearches more about it, then
this theory can have changes too.this theory can have changes too.
It will continue to have changesIt will continue to have changes
until it becomes a law.until it becomes a law.
Bohr introduced the radius=rBohr introduced the radius=r
relating to the nucleusrelating to the nucleus
Electrons are arranged it aElectrons are arranged it a
quantized orbit which is alsoquantized orbit which is also
called fixed energy.called fixed energy.
-

16. LEVELS OF
SHELLS AND
ELECTRONS.

17. The Bohr model of the atom, like many ideas in
the history of science, was at first prompted by
and later partially disproved by experimentation.
http://en.wikipedia.org/wiki/Category:Chemistry
Increasing energy
of orbits
n = 1
n = 2
n = 3
A photon is emitted
with energy E = hf
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-

18. According to classical
physics, light
should be emitted as the
electron
circles the nucleus. A loss of
energy
would cause the electron to
be drawn
closer to the nucleus and
eventually
spiral into it.
Hill, Petrucci, General Chemistry An Integrated Approach 2nd Edition, page 294

19. Q1.What are sub shells?
Q2.What is the meaning of energy level?
Q3.Atomic models are related to which model?
Q4.How will the electrons fall into the nucleus?
Q5.Explian emission of energy which electron takes
or gives?
Q6.What are electrons?
Q7.How can we find the number of protons ?
Q8. What is the another name for energy level?
Q9.Which type of foil did Rutherford use? And what
was its thickness?
Q10.What do you mean by arrangement of electrons?

21. 1. http://chemistry-
desk.blogspot.qa/2011/05/weakness-of-
rutherforss-model.html
2. http://www.preservearticles.com/20101230203
2/drawbacks-in-the-rutherfords-nuclear-model-
of-an-atom.html
3. https://www.google.com/search?
q=bohr+atomic+model+images&biw=1366&bih=
638&source=lnms&sa=X&ved=0ahUKEwisi6TD
6cbRAhWMJsAKHZQmDHQQ_AUIBSgA&dpr=1
#q=BOHR