
Lithium Isotopes and Atomic Structure

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Sophia Harris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic number of lithium?
4
1
2
3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a neutral lithium atom, how do the number of protons compare to the number of electrons?
Cannot be determined
Protons are more
Electrons are more
They are equal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the number of neutrons in an isotope of lithium?
Divide mass number by atomic number
Add atomic number to mass number
Multiply atomic number by mass number
Subtract atomic number from mass number
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass number of the most common lithium isotope?
6
9
7
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of lithium atoms are lithium-7?
100%
92.4%
75%
50%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the average atomic mass of lithium calculated?
By adding the masses of all isotopes
By averaging the masses of all isotopes
By taking the mass of the most common isotope
By subtracting the mass of the least common isotope
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is lithium-7 represented in isotope notation?
Li-6
Li-7
Li-8
Li-9
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