Average Atomic Mass
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Cecilia Martinez Zavala
Used 5+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Boron (B) has two naturally occurring isotopes: boron-10 (abundance = 19.8%, mass = 10.013 amu),
boron-11 (abundance = 80.2%, mass = 11.009 amu). Calculate the atomic mass of boron.
10.0 amu
10.2 amu
10.8 amu
11.0 amu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the table to calculate the atomic mass of element X. Then use the periodic table to
identify the element.
14.999
15.999
16.999
17.99
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the graph and the data table, calculate the average atomic mass of the unknown element. Identify the unknown element.
86.20 amu
86.83 amu
86.97 amu
87.10 amu
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the mass spectrum graph to identify the element.
Boron
Neon
Nickel
Palladium
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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 atomic mass of copper.
63.0
63.5
64.0
64.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atoms of 16O, 17O, and 18O have the same number of:
Protons, but different number of electrons
Electrons, but a different number of protons
Protons, but a different number of neutrons
Neutrons, but a different number of protons
Tags
NGSS.MS-PS1-1
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