Lewis dot structures
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Standards-aligned
Ndashe Kamungu
Used 17+ times
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12 questions
Show all answers
1.
REORDER QUESTION
1 min • 1 pt
Reorder the following in ascending order of priority
If Carbon is present, then underline Carbon
If carbon is not present, then underline the element with the fewest number of atoms
If all else fails, underline the less electronegative atom
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
2.
REORDER QUESTION
1 min • 1 pt
Reorder the following in ascending order
Underline the central atom
Draw an accurate version of lewis dot structures
Count the number of valence electrons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many valence electrons are present in a molecule of PCl3
26
21
5
4
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Is the diagram of PCl3 accurate?
The structure is correct because there is a total of 26 electrons and each atom has fulfilled octet
The structure is incorrect because there are 8 electrons around each atom
The structure is incorrect because there are no lone pairs on Phosphorous
The structure is incorrect because Cl only needs 2 electrons to fufill octet
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
NGSS.HS-PS1-3
5.
HOTSPOT QUESTION
1 min • 1 pt
Which molecule should be the central atom?
Answer explanation
If Carbon is present, then underline Carbon
If carbon is not present, then underline the element with the fewest number of atoms
If all else fails, underline the less electronegative atom
If Carbon is present, then underline Carbon
If carbon is not present, then underline the element with the fewest number of atoms
If all else fails, underline the less electronegative atom
Tags
NGSS.HS-PS1-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Look at the picture and determine if it is accurate
The structure is correct because Nitrogen has 8 electrons
The structure is correct because Nitrogen needs 8 Valence electrons to fulfill octet
The structure is incorrect because Nitrogen needs 10 valence electrons and the image has 8 valence electrons
The structure is incorrect because there is no lone pairs on nitrogen
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Looking at the molecule of Br2, which of the following correctly represents the number of shared
and unshared electrons in the diagram?
14 shared electrons, 0 unshared electrons
2 shared electrons, 12 unshared electrons
1 shared electrons, 12 unshared electrons
2 shared, 24 unshared
Tags
NGSS.HS-PS1-2
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