Calculating Average Atomic Mass
Authored by Morgan Cook
Science
10th Grade
NGSS covered
Used 69+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Compute the average atomic mass for silicon:
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
How many protons does this element have?
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An element has three different isotopes. One has a mass of 35.00 amu; another has a mass of 36.00 amu; and another has a mass of 38.00 amu. What is the average atomic mass of this element?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An element with 4.35% have a mass of 49.9461 amu, 83.79% have amass of 51.9405 amu, 9.50% have a mass of 52.9407 amu, and 2.36% have a mass of 53.9389amu.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the average atomic mass of silver.
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208. The average atomic mass of lead is 207.2. Which isotope of lead is likely to be the most abundant.
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