1. Elements and Atoms 11/7/11
Write the question and answer in complete
sentences!
1. Ice and water break down a rock. What type of
weathering is this?
2. What are convection currents?
3. How do convergent boundaries move?
4. Why is the earth divided into layers?
5. Write down today’s LEQ: How can we determine
the structure of an atom using the periodic table?

2. Activating Strategy
1.What is the BIGGEST thing
you can think of?
2. What is the smallest thing
you can think of?

3. What do all of these have in common?

4. They are ALL
made 100%
of ATOMS.

5. ALL of this is made of 100% atoms!

6. ALL MATTER IS MADE OF ATOMS!

7. Today’s LEQ: How can we determine
the structure of an atom using the
periodic table?
By the end of today, you should be able to…
1. Explain that atoms are the basic building blocks of
matter
2. Describe the structure of an atom
3. Use the periodic table to predict atomic structure

8. FOCUS VOCABULARY
Atom
Proton
Neutron
Electron
Nucleus

9. Let’s zoom in…

10. Let’s zoom in…

11. Let’s zoom in…

12. Let’s zoom in…

13. Let’s zoom in…

14. Let’s zoom in…

15. Let’s zoom in…

16. Atoms are the building blocks of matter.

17. Atoms are the building blocks of matter.
Proton
Neutron
Electron

18. Fill in your own Graphic Organizer! (pg. 11D)
Positively
charged particle
In the nucleus In the nucleus
Negatively charged
particles that move
around the nucleus
In the An
electron uncharged
cloud particle

19. Atoms are the building blocks of matter.
Proton Positively In the
charged
particle
+ nucleus
Neutron An uncharged In the
particle 0 nucleus
Electron Negatively In the
charged
electron
particles that
move around cloud
the nucleus

20. Let’s draw ATOMIC STRUCTURE
an atom!
(3 minutes)

21. HOT Q: Can you see an
atom with a
microscope?

22. Take a guess…
It would take you
500 years to count
____
the number of atoms
in one grain of salt.

23. Take a guess…
There are 109
____
different types of
atoms that exist.

24. Watch and Learn!
• http://video.google.com/videoplay?docid=-
1489580678324566187

25. WHAT’S THAT?!

26. WHAT’S THAT?!

27. WHAT’S THAT?!

28. HOW DO WE TELL
ONE TYPE OF
ATOM FROM
ANOTHER?
TURN TO PAGE R58 and R59 in the back of the book

29. The Periodic Table: List if ingredients use
to make EVERYTHING on Earth

30. Smaller #
=
7 # of protons
in the
Element nucleus
Symbol N
Nitrogen
14

31. 1. I have 27 protons. What am I?
2. I have 2 protons. What am I? SUMMARIZER
3. I have 46 protons. What am I?
4. I have 79 protons. What am I?
5. I have 8 protons. What am I?
6. I am calcium. How many protons do I have?
7. I am silver. How many protons do I have?
8. I am neon. How many protons do I have?
9. I am potassium. How many protons do I have?
10. I am iron. How many protons do I have?
11. I am nitrogen. Draw a picture of my nucleus!

32. LEQ: How can we determine the structure
of an atom using the periodic table?
1. What is an atom?
2. What are the three particles (or parts) that atoms
are made of?
3. What is the difference between a proton and a
neutron?
4. What is the difference between a proton and an
electron?
5. What particles make up the nucleus of an atom?

33. BLING BLING
• Gucci Mane wore a white gold necklace to
the awards show. Nelly wore a platinum
necklace. Both necklaces were blinged out.
What’s the difference?? (Both metals are different
Elements)

34. FOCUS VOCABULARY:
Atomic Number
Atomic Mass
Element
Energy Level

35. Math???
• When rounding in Math, how do you know if a
number should round UP or DOWN?
Below .5  Round DOWN
.5 and Above  Round UP

36. Math??
Practice these math problems
• Round 5.4 to the nearest whole number
• Round 2.2 to the nearest whole number
• Round 10.7 to the nearest whole number
• Round 22.5 to the nearest whole number
• What is 10-3?
• What is 17-5?
• What is 22-6?
• What is 14-7?

37. Math??
Practice these math problems
• Round 5.4 to the nearest whole number (5)
• Round 2.2 to the nearest whole number (2)
• Round 10.7 to the nearest whole number (11)
• Round 22.5 to the nearest whole number (23)
• What is 10-3? (7)
• What is 17-5? (12)
• What is 22-6? (16)
• What is 14-7? (7)

38. Elements 11/8/11
• Element: The most basic form of
matter on Earth.
• Everything on Earth is made of 1
or more Elements

39. EXPLAIN TO A 3rd Grader:
How would we solve this word problem?
Together, Juan and Jordan have a total
of 48 cookies. Juan has 25 cookies.
How many cookies does Jordan have?
TOTAL: 48 cookies
Juan: 25 cookies
Jordan has 23 cookies

40. Atomic Number
(# of protons
7 in the
Element nucleus)
Symbol N
Nitrogen
14.01

41. Identifying Elements
• Each element has a different number of
Protons
Protons = Atomic Number
Electrons = number of Protons
Neutrons = Atomic Mass
Number - Atomic
Number
( Bottom - Top)

42. In NORMAL ATOMS….
# of protons = # of electrons
Let’s practice:
Boron: 5 electrons
Helium: 2 electrons
Carbon: 6 electrons

43. What two particles make up the
nucleus?!

44. How can we determine the
total number of neutrons in Atomic Number
the nucleus?! (# of protons
7 in the
nucleus)
N
Nitrogen
14.01

45. Atomic Mass (Rounded)
Atomic Number
# of Neutrons
Remember:
Below .5  Round DOWN
Above .5  Round UP

46. Let’s try it…. 1
Atomic Mass: 1.008
Rounded At. Mass: 1 H
Atomic Number: 1 Hydrogen
1 1.008
1
Number of Protons: 1
0 Number of Neutrons: 0

47. HYDROGEN:

48. Let’s try it…. 4
Atomic Mass: 9.012
Rounded At. Mass: 9 Be
Atomic Number: 4 Beryllium
9 9.012
4
Number of Protons: 4
5 Number of Neutrons: 5

50. Identifying Elements
9
4
Be F
Fluorine
Beryllium
18.998
9.014
protons= protons=
electrons = electrons =
neutrons = neutrons=

51. Identifying Elements
9
4
Be F
Fluorine
Beryllium
18.998
9.014
protons= 4 protons= 9
electrons = 4 electrons = 9
neutrons = 5 neutrons= 10

52. HOT Q: Atoms like to have a
total charge of 0 (or neutral).
Knowing that atoms have both
positive and negative particles
(protons and electrons), how can
they have a total charge of 0?

53. THEY HAVE AN EQUAL
NUMBER OF PROTONS
AND ELECTRONS!

54. Experiment: Drawing Atoms
3
1. Draw a circle
2. Look at the atomic Li
Lithium
number, draw that many
protons in the center
6.941
3. Draw the same amount
of electrons around the
outside
4. Round the atomic mass #
5. Subtract atomic # from
atomic mass #

55. Practice
• Draw the Atom of Copper (Cu)
• Draw the Atom of Carbon (C)
• Draw the Atom of Neon (Ne)

56. Practice!

57. Periodic Table: Independent Practice
Pg. R58 and R59 (back of the book!)

58. LEQ: How can we determine the structure
of an atom using the periodic table?
• The 3 particles in an atom are:
– 1.
– 2.
– 3.
• Atomic Number =
• Atomic Mass Number =
• The number of ________ in a certain atom never
change.

59. Why the weird shape?!

60. New Material
• The Periodic Table is a way of organizing the
elements.
• The elements are organized by 1)increasing
atomic number and 2)similar chemical
properties.
• Atomic mass: the average mass of all the
element’s isotopes.

61. Helium Carbon
Sodium

62. Energy Levels: hold electrons with the same
amount of energy
1st Energy Level
2nd
3rd

63. Drawing Electrons and Energy Levels: Helium
Protons: 2 WHAT NUMBER
Neutrons: 2 ROW IS IT IN?! 1
Electrons: 2

64. Drawing Electrons and Energy Levels: BORON
Protons: 5 WHAT NUMBER
Neutrons: 6 ROW IS IT IN?! 2
Electrons: 5

65. DRAW YOUR OWN!
Pick THREE elements and draw models of each of
them. You must choose ONE element from the first
energy level, ONE from the second energy level, and
ONE from the third energy level.
BE SURE TO:
LABEL each element you draw
DRAW “+” signs in your protons
INCLUDE the correct number of protons,
neutrons, electrons
DRAW electrons in their correct energy
level

66. Summarizer:
In 3-5 sentences, EXPLAIN how we can use the
periodic table to determine the structure of an
atom.
YOUR ANSWER MUST INCLUDE THESE WORDS:
PROTON ATOMIC MASS
NEUTRON ATOMIC NUMBER
ELECTRON ENERGY LEVEL

67. Pass out Periodic Charts
• Pass out Periodic Charts