SCIENCE

2. CLASSROOM RULES
A- Acquire the possible knowledge during
discussion.
T- To respect when someone is talking in front.
O- Obliged to raise a hand when you want to be
recognized.
M- Maintain cleanliness inside the classroom.

3. ACTIVITY 1: PLUS OR MINUS
Directions: Line up in the Plus and Minus
sign posted in the blackboard. If the statement
is “Plus” it is positive or true. But, if the
statement is “Minus” it is negative or not
true.
Note: Every correct statement is 5 points.

4. ITEM NO. 1
Protons are negatively
charged particles in an
atom.

5. ITEM NO. 1
MINUS

6. ITEM NO. 2
Inside the nucleus are
electrons and neutrons.

7. ITEM NO. 2
MINUS

8. ITEM NO. 3
All matter is composed of
“Atoms”.

9. ITEM NO. 3
PLUS

10. ITEM NO. 4
The pioneers or founders of the
atomic model are John Dalton, J.J
Thomson, Ernest Rutherford, Niels
Bohr, and Erwin Schrodinger.

11. ITEM NO. 4
PLUS

12. ITEM NO. 5
The widely accepted accurate
model of the atom is the
quantum mechanical model of
Niels Bohr.

13. ITEM NO. 5
MINUS

14. ELECTRONIC STRUCTURE OF MATTER
ROSAFE F.TULIAO

15. LEARNING OBJECTIVES
At the end of the lessons, the students should
be able to:
a)Identify and describe the structure of atoms.
b)Discuss the different models of the atom; and
c)Illustrate the different models of the atoms.

16. ACTIVITY 2: IDENTIFY ME!
Directions: Identify the
parts of an atom.

20. ATOMIC STRUCTURE
All MATTER is
composed of ATOMS.

21. HISTORY OF AN ATOM

22. JOHN DALTON 1808
He is the father of modern atomic theory.
He suggested that all matter was made of
tiny spheres that were able to bounce
around with a perfect elasticity called
ATOMS.

24. JOSEPH JOHN THOMSON
J.J Thomson was a physicist
who is credited for discovering
the electron.

26. ERNEST RUTHERFORD
 Rutherford described the atom as having a tiny,
dense, and positively charged core called the
nucleus. Rutherford established that the mass of the
atom is concentrated in its nucleus. The light,
negatively charged, electrons circulated around this
nucleus, much like planets revolving around the Sun.

29. NIELS BOHR
Niels Bohr agreed with the planetary model of the
atom, but also knew that it had a few flaws. Using his
knowledge of energy and quantum physics he was
able to perfect Rutherford’s model. He was able to
answer why the electrons did not collapse into the
nucleus.

32. ERWIN SCHRÖDINGER
Schrödinger used mathematical equations
to describe the likelihood of finding an
electron in a certain position.
 This atomic model is known as the
quantum mechanical model of the atom.

33. ERWIN SCHRÖDINGER
This model describes a region
in space where the electron is
most likely to be found.

34. QUANTUM MODEL
The quantum mechanical model of
the atom describes the atom as
having a nucleus at the center around
in which the electrons move.

36. The way in which electrons are distributed in
the different orbitals around the nucleus of an
atom is called the electron configuration.
Filling of electrons start from lower energy
level to highest energy level.
ELECTRONIC CONFIGURATION

40. SUMMARY
The smallest part of an element is called an atom.
 Each atom (of an element) is different in structure
from other atoms (of other elements)
An atom can be divided in smaller subatomic
particles: Protons, Electrons and Neutrons

41. SUMMARY
The nucleus is the center of an
atom. It contains protons and
neutrons.
Electrons orbit the nucleus .

42. ACTIVITY 3: DRAW-DISS!
Directions: Draw all the models of an
atom and label the electrons, protons,
and neutrons in it. After that, explain
the models of an atom.

43. ACTIVITY 3: DRAW-DISS!
EXAMPLE:
John Dalton’ Model of an atom is
just tiny sphere tiny spheres that
were able to bounce around with a
perfect elasticity.

44. ACTIVITY 3: DRAW-DISS!
CRITERIA:
Creativity – 10%
Content – 5%
Neatness – 5%
Total – 20% or 20 points

45. EVALUATION
I. Directions. Answer the
following questions. (1 point
each)

46. EVALUATION
1. What do you call positively charged particles in
an atom?
a)Proton
b)Neutron
c)Electron
d)Nucleus

47. EVALUATION
1. What do you call positively charged particles
in an atom?
a)Proton
b)Neutron
c)Electron
d)Nucleus

48. EVALUATION
2. What do you call negatively charged
particles in an atom?
a)Proton
b)Neutron
c)Electron
d)Nucleus

49. EVALUATION
2. What do you call negatively charged
particles in an atom?
a)Proton
b)Neutron
c)Electron
d)Nucleus

50. EVALUATION
3. Inside an atom is the nucleus which consists of
protons and neutrons, where is the location of the
nucleus?
a)Outside
b)Center
c)Left
d)Right

51. EVALUATION
3. Inside an atom is the nucleus which consists of
protons and neutrons, where is the location of the
nucleus?
a)Outside
b)Center
c)Left
d)Right

52. EVALUATION
4. What is John Dalton model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were able
to bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of finding
an electron in a certain position.
d)He described the atom as having a tiny, dense, and positively charged
core called the nucleus.

53. EVALUATION
4. What is John Dalton model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were
able to bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of finding
an electron in a certain position.
d)He described the atom as having a tiny, dense, and positively charged
core called the nucleus.

54. EVALUATION
5. What is J.J Thomson model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were able to
bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of finding an
electron in a certain position.
d)He described the atom as having a tiny, dense, and positively charged
core called the nucleus.

55. EVALUATION
5. What is J.J Thomson model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were able to
bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of finding an
electron in a certain position.
d)He described the atom as having a tiny, dense, and positively charged
core called the nucleus.

56. EVALUATION
6. What is Ernest Rutherford model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were
able to bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of
finding an electron in a certain position.
d)He described the atom as having a tiny, dense, and positively
charged core called the nucleus.

57. EVALUATION
6. What is Ernest Rutherford model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were
able to bounce around with a perfect elasticity called atoms.
c)He used mathematical equations to describe the likelihood of
finding an electron in a certain position.
d)He described the atom as having a tiny, dense, and positively
charged core called the nucleus.

58. EVALUATION
7. What is Niels Bohr model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were
able to bounce around with a perfect elasticity called atoms.
c)He described the atom as having a tiny, dense, and positively
charged core called the nucleus.
d)He was able to answer why the electrons did not collapse into
the nucleus.

59. EVALUATION
7. What is Niels Bohr model of an atom?
a)He was a physicist who is credited for discovering the electron.
b)He suggested that all matter was made of tiny spheres that were
able to bounce around with a perfect elasticity called atoms.
c)He described the atom as having a tiny, dense, and positively
charged core called the nucleus.
d)He was able to answer why the electrons did not collapse
into the nucleus.

60. EVALUATION
II. Draw the widely accepted model
of atom by Erwin Schrodinger and
label its electrons, protons and
neutrons. (3 points)

61. ASSIGNMENT
CHOOSE ONE SCIENTIST (DALTON,
THOMSON, RUTHERFORD, BOHR,
SCHRÖDINGER), MAKE A LETTER OF
APPRECIATION ABOUT THEIR
DISCOVERIES AND CONTRIBUTION TO
THE ATOMIC MODEL AND ITS THEORIES.

62. ASSIGNMENT
CRITERIA PERCENTAGE
Creativity 10%
Content 10%
Grammar and Spelling 5%
Overall Output 5%
TOTAL 30% or 30 points

63. THANKYOU FOR LISTENING!