Valence Electrons and Electron Dot Diagrams
Presentation
•
Science
•
9th Grade
•
Hard
James Gonzalez
FREE Resource
10 Slides • 17 Questions
1
Please copy the main points into your notebook.
2
Essential Question: What are Lewis Dot diagrams?
Talking Points: I can explain how to draw Lewis dot diagrams using valence electrons.
3
Remember Niels Bohr?
Key Point: Bohrs' model of the atom shows electrons orbiting around the nucleus
4
Multiple Choice
Bohrs Model of the Atom shows ______ orbiting the nucleus in certain energy levels. Similar to how planets orbit the sun.
Protons
Neutrons
Electrons
5
Key Point: Valence electrons are located in the outer energy level of an atom.
6
Multiple Choice
Valence electrons are located in the outer _________ _________ of an atom.
Energy Level
Neutron Cloud
Subatomic Particle
Fixed Superpath
7
Key Point: Elements in the same vertical column have the same number of valence electrons.
8
Get your periodic table out now!
9
10
Multiple Choice
How many valence electrons does Be have?
2
4
5
9
11
Multiple Choice
How many valence electrons does Si have?
4
6
14
28
12
Multiple Choice
How many valence electrons does Nitrogen have?
5
7
8
14
13
Multiple Choice
How many valence electrons does Oxygen have?
1
6
8
16
14
15
Group 7 has 7 valence electrons.
7 valence electrons = 7 dot for the lewis dot diagram
Ex. Group 7
Group 1 has 1 valence electron.
1 valence electron = 1 dot for the lewis dot diagram
Ex. Group 1
16
Trivia Questions!
What do you remember about the peridodic table?
17
Multiple Choice
Which element is in group 14 and period 3?
N
Na
Si
Li
18
Multiple Choice
Which element is in group 11 and period 5?
Na
B
Ag
Rb
19
Multiple Choice
How would Calcium be classified?
Metal
Nonmetal
Metalloid
20
Multiple Choice
What is an element that is a gas with no luster and is not a conductor of heat or electricity.
Metal
Nonmetal
Metalloid
21
Multiple Choice
What is an element that is shiny and a good conductor of heat and electricity?
Metal
Nonmetal
Metalloid
22
Multiple Choice
These elements border the zigzag line on the periodic table.
metals
nonmetals
metalloids
23
Multiple Choice
How many valence electrons does Xenon have?
54
131
8
18
24
Multiple Choice
How many valence electrons does Magnesium have?
2
12
24
24.305
25
Multiple Choice
How many valence electrons does Potassium have?
19
1
39
4
26
Multiple Choice
In what section of the periodic table can Silver be found?
Alkali Metals
Noble Gases
Transition Metals
Rare Earth Elements
27
Multiple Choice
In what section of the periodic table can Iodine be found?
Alkaline Earth
Halogens
Noble Gases
Lanthanides
Please copy the main points into your notebook.
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