

Unit 4 Review
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Chemistry
•
10th Grade
•
Medium
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Standards-aligned
Angela Resendez
Used 13+ times
FREE Resource
13 Slides • 14 Questions
1
Unit 4 Review

2
Electron Configuration
Example: Sulfur
Full- 1s2 2s2 2p6 3s2 3p4
3
4
Multiple Choice
Which element has the electron configuration 1s2 2s2 2p5 ?
Oxygen
Fluorine
Neon
Helium
5
Multiple Choice
How many valence electrons are in an atom with the electron configuration 1s2 2s2 2p1?
1
2
3
4
6
Electron Configuration
Example: Sulfur
Short- [Ne] 3s2 3p6
7
Multiple Choice
What is the short hand electron configuration for Sr ?
[Kr] 5s2
[Xe] 5s2
[Kr] 4p6 5s2
[Xe] 4p6 5s2
8
9
Fill in the Blanks
What is the short electron configuration for the element in period 4 group 1 ?
Type answer...
10
Bohr Models
The "Dots" represent electrons which is equal to the atomic number for neutral atoms
11
Fill in the Blanks
What element is represented by this BOHR model?
(put the symbol)
Type answer...
12
Lewis Dot Structures
Includes the symbol of an element with it's valence electrons represented by "dots"
13
Multiple Choice
What is the Lewis dot structure of Boron (B) ?
14
Multiple Choice
Which of these Lewis dot structures is written correctly?
O
Na
Ge
Ar
15
Electromagnetic Spectrum
Know the relationships of Energy, Frequency, and Wavelength
16
Energy & Frequency
Are directly related. If the energy of a wave is low, the frequency is also low.
17
18
19
Multiple Choice
As the energy of a wave decreases, what happens to the wavelength?
increases
decreases
stays constant
20
Multiple Choice
As the energy of a wave decreases, what happens to the frequency?
increases
decreases
21
Multiple Choice
Compared to red, green wavelength are....
shorter
longer
22
Multiple Choice
Compared to a photon of Orange light, Blue light has...
smaller momentum
lower frequency
greater energy
longer wavelength
23
Ground State Vs. Excited State
24
25
Multiple Choice
Which of the following is true?
an electron emits energy as it returns to its ground state
an electron emits visible light as it moves to an excited state
an electron absorbs visible light cause it to move to an excited state
an electron absorbs energy as it returns to its ground state
26
Fill in the Blanks
When an atom is in the excited state and releases energy to return to the ground state, what form of energy is emitted?
Type answer...
27
Multiple Choice
Which state is considered the "normal" state?
Ground State
Excited State
Unit 4 Review

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