Week 12 Chemistry
Electron Configuration, Lewis Dot Structures, Assessment 3
Warm Up: 4 Minutes
Stay in your own seat
Write the Learning
Target
You should be working SILENTLY
CONSTRUCT THE COMPLETE ORBITAL
NOTATION ELECTRON CONFIGURATION FOR
ZINC
Agenda

Warm Up – 7 minutes

Quiz Recap– 4 minutes

Cornell Style Notes/ Examples – 12 minutes

Guided Practice – 10 minutes

Independent Practice -17 minutes

Closing – 3 minutes
Quiz Scores
Period
Period
Period
Period
Period
Period
1:
3:
4:
5:
6:
7:
43%
55%
64%
66%
55%
61%
Take out paper for notes
BLUE
RED
How many of you are tired of the full
orbital configuration???
Good News!
There is a shorter way to write
Electron Configurations!
Identify the Element
Aluminum
2
1s
2
2s
6
2p
2
1
3s 3p
Shorthand Electron Configuration
Sublevel
10
5f
Energy
Level
Number of
Electrons
in sublevel
Example
Fluorine
Example
Potassium
Example
Zinc
Guided Practice
#1
Compose the Shorthand Electron
Configuration for Argon. How many valence
electrons are there?
#2
Compose the Shorthand Electron
Configuration for Zirconium. How many
valence electrons are there?
#3
Compose the Shorthand Electron
Configuration for Palladium. How many
valence electrons are there?
Independent Practice
 Practice Makes Perfect 
85%
Closing
How many different ways can you express
electron configuration?
Warm Up: 3 Minutes
Stay in your own seat
You should be working SILENTLY
Draw the shorthand electron
configuration for Bromine
Write the Learning
Target
Agenda
 Warm
Up- 7 minutes
 Cornell
Style Notes/Examples- 8 minutes
 Guided
Practice- 6 minutes
 Independent
Practice – 7 minutes
 Stations
Review: 24 minutes
 Closing-
1 minute
Take out paper for notes
BLUE
RED
Lewis Dot Structures

Another way to represent electrons of an element
 Element
 Dots
symbol represents the inner electrons
represent the valence electrons
How to find Valence Electrons?
Numbers next to A to indicate the
number of Valence Electrons
1
1
IA
1
H
Periodic Table
2
IIA
13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
1.00797
2
3
Li
4
5
Be
B
6.939 9.0122
3
11
Na
12
Mg
5
6
7
19
K
20
Ca
3
IIIB
4
IVB
5
VB
6
VIB
7
VIIB
8
9
VIIIB
10
21
Sc
22
Ti
23
V
24
Cr
25
Mn
Rb
Sr
Mo
Tc
85.47
55
87.62 88.905 91.22 92.906 95.94
56
57
72
73
74
[99]
75
Ba
8
O
9
F
Ne
11
IB
12
IIB
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
26.9815 28.086 30.9738 32.064 35.453 39.948
26
Fe
27
Co
28
Ni
39.102 40.08 44.956 47.90 50.942 51.996 54.9380 55.847 58.9332 58.71
37
38
39
40
41
42
43
44
45
46
Cs
7
N
He
4.0026
10
10.811 12.0112 14.0067 15.9994 18.9984 20.179
22.9898 24.305
4
6
C
18
VIIIA
2
Y
La
Zr
Hf
Nb
Ta
W
Re
132.905 137.34 138.91 178.49 180.948 183.85 186.2
87
88
89
104
105
106
107
Fr
Ra
Ac
Ku
[223]
[226]
[227]
[260]
Ru
Rh
Pd
29
30
31
32
33
Ge
63.54
47
65.37
48
65.37
49
72.59 74.9216 78.96 79.909 83.80
50
51
52
53
54
In
Sn
Sb
Te
Br
36
Ga
Cd
Se
35
Zn
Ag
As
34
Cu
I
Kr
Xe
101.07 102.905 106.4 107.870 112.40 114.82 118.69 121.75 127.60 126.904 131.30
76
77
78
79
80
81
82
83
84
85
86
Os
190.2
108
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
192.2 195.09 196.967 200.59 204.37 207.19 208.980 [210]
109
At
Rn
[210]
[222]
How to Build Lewis Dot Structures
1.
Identify number of valence electrons in the
element
2.
Place valence electrons around the element
symbol
How should we put the electrons around
the element?
Try Oxygen (6 valence electrons)
IMPORTANT!!!
YOU MUST PUT ONE ELECTRON ON
EACH SIDE BEFORE PAIRING THEM UP
Example
Carbon
Example
Magnesium
Example
Neon
Guided Practice
1.
Compose the Lewis Dot Structure for Sodium
2.
Compose the Lewis Dot Structure for Chlorine
Practice Makes Perfect…
Take out a piece of paper. Draw the Lewis Dot
Structures for the first 10 elements.
85% MASTERY
Stations Review
You will have 4 minutes at each station
 See how many problems you can complete in that time at each
station. YOU MUST SHOW ALL WORK!
 You will be turning this in at the end of class.

Every problem you get correct will be worth
an extra 0.5% on your exam this Thursday!
Closing
What information do you need to draw a
Lewis Dot Structure?
Warm Up: 4 Minutes
The FM Radio station KJAZ broadcasts at 16.4 x 106 Hz. What is
the wavelength of the Radio Waves broadcast by this station?
Agenda
•
•
•
•
•
Warm Up- 7 Minutes
Purpose of Review/ Material Covered- 3 Minutes
Expectations for White Board Jeopardy- 3 Minutes
White Board Jeopardy- 37 Minutes
Closing- 3 Minutes
Purpose of Reviewing
• Prepare for Assessment 3
Why Prepare?
85%
18
Questions
Material Covered on Assessment 3
•
•
•
•
•
•
•
Atomic Theory Scientists
Properties of Waves
Speed of Light Formula
Energy Formulas
Atomic Mass Calculations (Isotopes)
Electron Configuration
Lewis Dot Structures
White Board Jeopardy
• Students will work in groups of 3 to 4 (Team number is
on the desk in front of you).
• Students will need Dry Erase Board, Expo Marker,
Periodic Table, and Eraser.
• NO NOTES are allowed during White Board Jeopardy
White Board Jeopardy
Team #
How to Play???
1. Write your team number in the upper right hand corner
2. During the song, you will work the problem shown in your lap
INDIVIDUALLY.
3. At the end of the Jeopardy song, you will talk with your group.
4. When Mr. Ghosh says “Boards Up” , all students in group must have
Identical responses on their Dry Erase Boards that are correct in order to
receive FULL CREDIT. Boards that are not up will not be counted.
5. You may be called on randomly to explain your answer. If I do this and you
cannot explain correctly, your team will NOT receive credit.
Scoring and Rules/Expectations
Scoring:
1. All questions are worth 1 point
Rules/Expectations:
1. No talking during the Jeopardy song
2. Must be working individually during the song
3. No arguing with Mr. Ghosh about scoring
4. Must be explaining WHY during group work time
Any violations of the rules/expectations will result in your team losing a point
Prizes!
The team that finishes with the most number of points will
receive 5% extra credit on the Exam tomorrow.
Which scientist led the experiment using the cathode ray
tube that discovered the existence of the electron?
a.
b.
c.
d.
Democritus
Bohr
Thomson
Rutherford
A wave with high energy has the following properties:
A. High frequency, long wavelength
B. High frequency, short wavelength
C. Low frequency, long wavelength
D. Low frequency, short wavelength
7
The FM radio station 101.1 broadcasts at 61.6 x 10 Hz. What is
the wavelength of the Radio Waves broadcast by this station?
8
[Hint: c = 3.00 x 10 m/s]
A. 4.9 meters
B. 0.49 meters
C. 2.05 meters
D. 20.5 meters
What is the difference between the atomic mass and the mass
number?
a. The mass number only counts protons, not neutrons
b. The mass number is an average of the masses of all
known isotopes
c. The mass number is the sum of the masses of the
protons and neutrons
d. The mass number is the sum of the masses of the
electrons and protons.
Which of the following is the shorthand electron
configuration for Arsenic?
2
2
6
2
6
10
2
3
a. 1s 2s 2p 3s 3p 3d 4s 4p
2 2 6 2 6 2 10 3
b. 1s 2s 2p 3s 3p 4s 3d 4p
2 2 6 2 6 10 1 4
c. 1s 2s 2p 3s 3p 3d 4s 4p
2 2 6 2 6 2 10 2
d. 1s 2s 2p 3s 3p 4s 3d 4p
Which of the following best describes the atomic theory of Niels
Bohr?
a. Atoms consist of electrons circling in definite orbits around a
positive nucleus
b. Atoms are composed of electrons in a cloud around a positive
nucleus
c. Atoms can be easily split, at which time they become radioactive
d. An atom’s mass is determined by the mass of its neutrons
As a distant star moves away from earth, the light given off by the
star has measurably lower energy. What happens to the wavelength
and frequency when the energy becomes lower?
a.
b.
c.
d.
The wavelength becomes longer, and the frequency decreases
The wavelength becomes shorter, and the frequency decreases
The wavelength becomes longer, and the frequency increases
The wavelength becomes shorter, and the frequency increases
The wavelength of a radio wave is 625 m. Calculate the
energy of these radio waves.
[Hint: c = 3.00 x 108 m/s, h = 6.63 x 10-34 J·sec]
a.
b.
c.
d.
4.14 x 10-31 J
3.18 x 10-28 m
3.18 x 10-28 J
4.14 x 10-31 m
If E is the symbol for an element, which two of the
following symbols represent isotopes of the same element?
I.
II.
III.
IV.
41
16E
41
17E
44
17E
41
18E
A. I and II
B. II and III
C. I only
D. I, II, and IV
Which of the following is the shorthand electron
configuration for Vanadium?
2
2
6
2
6
3
2
a. 1s 2s 2p 3s 3p 3d 4s
2 2 6 2 6 2 3
b. 1s 2s 2p 3s 3p 4s 3d
2 2 6 2 6 4 1
c. 1s 2s 2p 3s 3p 3d 4s
2 2 6 2 6 1 4
d. 1s 2s 2p 3s 3p 4s 3d
Which scientist proposed that the atom was composed of a
small, dense positive center but was mostly empty space?
a.
b.
c.
d.
Rutherford
Thomson
Bohr
Dalton
Edgar and Cesar burned two different metals. Cesar’s flame was
red, and Edgar’s flame was blue. Knowing that blue light has a
higher frequency, what would you expect to be true of the
wavelength and energy?
a.
b.
c.
d.
The red light has longer wavelength and higher energy
The blue light has longer wavelength and higher energy
The red light has longer wavelength and lower energy
The blue light has longer wavelength and lower energy
Gamma radiation produced in certain nuclear decay
18
processes has a frequency of 3.14 x 10 Hz. What is the
energy carried by a photon of this radiation?
8
-34
[Hint: c= 3.00 x 10 m/s, h = 6.63 x 10
a.
b.
c.
d.
6.33 x 10
-44
J
2.08 x 10
-15
Hz
9.55 x 10
-11
J
-15
J
2.08 x 10
J•sec]
There are 3 naturally occurring isotopes of
the element Sharpstonium. The following
is a list of these isotopes’ abundance in
nature and their rounded masses.
153.94 amu
22.0%
149.07 amu
2.9%
151.28 amu
74.1%
Calculate the average atomic mass of
Sharpstonium from these data.
A. 151.2 amu
B. 150.3 amu
C. 189.2 amu
D. 181.6 amu
Which of the following is the shorthand electron
configuration for Germanium?
2
2
6
2
6
10
2
2
a. 1s 2s 2p 3s 3p 3d 4s 4p
2 2 6 2 6 2 10 2
b. 1s 2s 2p 3s 3p 4s 3d 4p
2 2 6 2 6 10 1 3
c. 1s 2s 2p 3s 3p 3d 4s 4p
2 2 6 2 6 2 10 1
d. 1s 2s 2p 3s 3p 4s 3d 4p
Which Lewis dot structure represents
an atom of chlorine in the ground
state?
A. 1
B. 2
C. 3
D. 4
Closing
Warm Up: 3 Minutes
Stay in your own seat
You should be working SILENTLY
Write three things that you could
do once you get your test to ensure
that you’re successful.
When you’re done, look through your notes and
worksheets to prepare for the assessment.
Write the Learning
Target
Agenda

Warm Up: 5 Minutes

Goals/ Expectations for Assessment: 3 Minutes

Assessment: 42 Minutes

Closing: 3 Minutes
Why Prepare?
What is
Mastery?
85%
18
Questions
Expectations for Assessment
Clear your desk of everything except a....
1.
Number 2 Pencil
2.
Scantron
3.
Calculator
Backpacks and binders on the floor
Testing Tips

Read the problem and answer choices CAREFULLY

If you don’t know the answer, make sure you at least take a
guess

Guessing on questions you don’t know can only help you!
All formulas and constants
you need are in the test
packet
Testing Rules

Students will remain SILENT for the duration of the test.
Even if you are done, YOU CANNOT TALK

Keep your eyes on YOUR OWN PAPER
Failure to follow the testing rules will result in your test
being taken. You will then receive a ZERO and a dean
referral.
Good Luck!
Exam Correction
On # 12, your answer choices should be:
3.03 x 1014 Hz
B. 3.03 x 1014 m
C. 3.29 x 10-15 Hz
D. 3.29 x 10-15 m
A.
When You’re Done…
 Bring
it to me at the front
 Read pages 372-382 in your Chemistry
Textbook
 Answer questions #34, 35, 36, 49, 50,
and 51 on pages 386-387
Closing

How was your assessment?

What could you have done differently?
Warm Up: 3 Minutes
Stay in your own seat
Write the Learning
Target
You should be working SILENTLY
You took your third assessment on Thursday. Answer the following
questions about the assessment in COMPLETE SENTENCES:

How do you think you performed on Assessment 3?

What did you do to prepare for Assessment 3?

What could you have done to better prepare for Assessment 3?
Just Something to Think About?
“Obstacles are those frightful
things you see when you take your
eyes off your goal.”
- Henry Ford
Agenda

Warm Up [5 minutes]

Answer Key [ 4 minutes]

Tracking [ 10 minutes]

Reteach Chem.5B [9 minutes]

Guided Practice [6 minutes]

Exit Ticket [9 minutes]

Closing: [3 Minutes]
Answer Key
As Mr. Ghosh goes through the answers, highlight the ones
you got wrong
1. D
12. A
2.
B
13. B
3.
C
14. C
4.
C
15. D
5.
B
16. C
6.
C
17. C
7.
D
18. C
8.
A
19. D
9.
B
20. B
10.
C
21. D
11.
A
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
1, 2, 3, 4
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
1, 2, 3, 4
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
???
[3 if you
got 3 out
of 4
correct]
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
1, 2, 3, 4
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
???
[3 if you
got 3 out
of 4
correct]
4
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
1, 2, 3, 4
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
???
[3 if you
got 3 out
of 4
correct]
4
Your points x100
Total points
Percent Mastery
Cathy received 1 point out of 4
possible points. What is
her percent mastery?
25%
Your points x100
Total points
What does Tracking Look Like?
Objectives Questions
on the
Exam
Chem.6A
Atomic
Theory
1, 2, 3, 4
Your
Points
Total Points
Percent
Mastery
Bar Graph
Mastery
85%
 or 
???
[3 if you
got 3 out
of 4
correct]
4
Your points x100
Total points
Shade in
your %
mastery
You Do It
Use your assessment to determine
what you’re good at and what you
need help with ….
Let’s Revisit The Periodic Table
Question…
Which group of people are more similar?
Why?
Question…
Which elements are the most similar?
1.
Fluorine
2.
Chlorine
3.
Lithium
4.
Beryllium
Fluorine and Chlorine are more
similar. But Why?
1
1
IA
1
H
Periodic Table
2
IIA
13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
1.00797
2
3
Li
4
5
Be
B
6.939 9.0122
3
4
5
6
7
11
Na
12
Mg
22.9898 24.305
19
20
K
Ca
3
IIIB
21
Sc
4
IVB
22
Ti
5
VB
23
V
6
VIB
24
Cr
7
VIIB
25
Mn
Rb
Sr
Mo
Tc
85.47
55
87.62 88.905 91.22 92.906 95.94
56
57
72
73
74
[99]
75
Ba
7
N
8
O
9
F
He
4.0026
10
Ne
10.811 12.0112 14.0067 15.9994 18.9984 20.179
8
26
Fe
9
VIIIB
27
Co
10
28
Ni
39.102 40.08 44.956 47.90 50.942 51.996 54.9380 55.847 58.9332 58.71
37
38
39
40
41
42
43
44
45
46
Cs
6
C
18
VIIIA
2
Y
La
Zr
Hf
Nb
Ta
W
Re
132.905 137.34 138.91 178.49 180.948 183.85 186.2
87
88
89
104
105
106
107
Fr
Ra
Ac
Ku
[223]
[226]
[227]
[260]
Ru
Rh
Pd
11
IB
29
12
IIB
30
Cu
Zn
63.54
47
65.37
48
Ag
Cd
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
26.9815 28.086 30.9738 32.064 35.453 39.948
31
32
33
34
35
36
Ga
Ge
65.37
49
72.59 74.9216 78.96 79.909 83.80
50
51
52
53
54
In
Sn
As
Sb
Se
Te
Br
I
Kr
Xe
101.07 102.905 106.4 107.870 112.40 114.82 118.69 121.75 127.60 126.904 131.30
76
77
78
79
80
81
82
83
84
85
86
Os
190.2
108
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
192.2 195.09 196.967 200.59 204.37 207.19 208.980 [210]
109
At
Rn
[210]
[222]
Take out paper for notes
BLUE
RED
Groups (or Families)
 Arranged
vertically down the periodic
table[column 1-18]
 Similar
chemical properties
- because they have the same number
of
VALENCE ELECTRONS
Check point
1. Which elements have the most similar
chemical properties?
A. K and Na
B. K and Cl
C. K and Ca
D. K and S
Check point
2.Which element is chemically most similar
to cesium?
A. rubidium
B. xenon
C. helium
D. barium
Transition Metals
Noble Gases
Halogens
Alkaline Earth Metals
Alkali Metals
The 5 main families
Guided Practice

Mr. Ghosh: Project a multiple question
Student will:
1.
Silently read the question to your self and pick an answer
[21 seconds]
2.
Take 39 seconds to speak with your shoulder partner to
chose the correct answer and discuss why it is the correct
answer. [39 seconds]
3.
When Mr. Ghosh says “SWAG” all students should be SILENT
Let’s Practice
1.
An element is discovered that has an atomic
number of 117 and 7 valence electrons. The
element is most likely____
A.
A noble gas
B.
An alkali metal
C.
A halogen
D.
A transition metal
Let’s Practice
2. Which statement explains why Sodium is
classified as a Group 1 element?
A.
A sodium atom has 1 valence electron
B.
A sodium atom has 11 neutrons.
C.
Sodium is a silver metal at room temperature.
D.
Sodium reacts with most noble gases
Let’s Practice
The Table below lists
properties of an
unidentified element:
Based on this information,
the unidentified element is
best classified as which of
the following?
A.
A metal in period 2
B.
A metal in group (2A)
C.
A nonmetal in group 17 (7A)
D.
A metalloid in period 2
has 2 valence electrons
Exit Ticket