
Understanding Alpha Decay
Authored by Alane Nunez
Chemistry
10th Grade
NGSS covered
Used 3+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do atoms undergo radioactive decay?
To gain more electrons
To change their color
To become more stable
To increase their size
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is emitted during alpha decay?
Two electrons and two protons
Two neutrons and two electrons
Two protons and two neutrons
Two electrons and two neutrons
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In isotope notation, what does the top number represent?
Number of electrons
Number of neutrons
Mass number
Atomic number
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After uranium-233 undergoes alpha decay, what element does it become?
Thorium
Radium
Lead
Neptunium
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic number of thorium?
88
90
92
94
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an element undergoes alpha decay and becomes proactinium, what was its original element?
Uranium
Thorium
Radium
Neptunium
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During alpha decay, by how much does the mass number decrease?
6
8
4
2
Tags
NGSS.HS-PS1-8
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