
Bohr Diagrams and Lewis Dot Diagrams
Presentation
•
Chemistry
•
10th Grade
•
Hard
Joseph Anderson
FREE Resource
13 Slides • 13 Questions
1
TUESDAY 9/20: UNIT 2 – Lewis Dot and Bohr models
Thurs 9/22- Unit 2 Test, MOS due
Fri 9/23 is a PLD days
Announcements/Reminders
Bellwork:
Agenda
ON GC
Bellwork
Lewis dot & bohr models
HW:
PAGES 28-31 if not finished in class
2
3
4
5
Multiple Choice
How many electrons can go in the first energy level?
2
8
18
32
6
Multiple Choice
How many electrons can go in the second energy level?
2
8
18
32
7
Multiple Choice
How many electrons can go in the third energy level?
2
8
18
32
8
9
Draw the Bohr Diagram for the following:
H, Li, Na
10
Draw the Bohr Diagram for the following:
H, Li, Na
What do you notice about all of the valence shells?
11
Draw the Bohr Diagram for the following:
H, Li, Na
What do you notice about all of the valence shells?
They all have one electron!
12
Draw the Bohr Diagram for the following:
H, Li, Na
What do you notice about all of the valence shells?
They all have one electron!
Now try this column…
Be, Mg
13
Draw the Bohr Diagram for the following:
H, Li, Na
What do you notice about all of the valence shells?
They all have one electron!
Now try this column…
Be, Mg
Valence trend…
14
15
16
Multiple Choice
What is a Lewis Dot Structure?
It shows all of the particles in the atom.
Contains protons and neutrons
Only shows the element symbol and it's outer most electron shell
Contains protons and electrons
17
Multiple Choice
What is the the outermost shell with electrons?
Shells
Isotope
Orbit
Valence
18
Multiple Choice
How many valence (outer) electrons does an Oxygen atom have?
2
6
8
16
19
Multiple Choice
What is the mass number of this atom of Chlorine?
17
18
35
35.453
20
Multiple Choice
Which element is this?
Calcium
Chlorine
Silicon
Potassium
21
Multiple Choice
Which Bohr model represents Be?
22
Multiple Choice
Which Bohr model represents Neon?
23
Multiple Choice
Is this a correct dot diagram for fluorine (F)
Yes
No
24
Multiple Choice
25
Multiple Choice
What is the correct lewis dot diagram for Boron?
26
Practice on page 28-31
Finish for HW
Some text here about the topic of discussion
TUESDAY 9/20: UNIT 2 – Lewis Dot and Bohr models
Thurs 9/22- Unit 2 Test, MOS due
Fri 9/23 is a PLD days
Announcements/Reminders
Bellwork:
Agenda
ON GC
Bellwork
Lewis dot & bohr models
HW:
PAGES 28-31 if not finished in class
Show answer
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