
Chemistry Benchmark (Midterm) Review
Authored by Tracy Danielson
Chemistry
11th Grade
NGSS covered
Used 3+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Copper has two isotopes: Cu-63 (abundance = 69.2%, mass = 62.930 amu) and Cu-65 (abundance = 30.8%, mass = 64.928 amu). Calculate the average atomic mass of copper.
63.55 amu
63.5 amu
59.55 amu
64.9 amu
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the electron configuration for magnesium?
1s^2 2s^2 2p^3
1s^2 2s^2 2p^6 3s^2 3p^1
1s^2 2s^2 2p^6 3s^2
1s^2 2s^2 2p^6 3s^1
Tags
NGSS.HS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How many valence electrons does potassium have?
1
2
8
12
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is not a metal
iron
sodium
oxygen
magnesium
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which element has the largest atomic radius?
Si
S
Mg
Na
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How many liters are in 50. mL?
5000 L
0.050 L
500 L
0.500 L
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How many significant digits are in the value 530,405,000?
4
5
6
9
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