What happens to the mass and atomic numbers of an atom during alpha decay?
Radioactive Decay Equations

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Science, Physics, Chemistry
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6th Grade - University
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Medium
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mass number decreases by 4, atomic number decreases by 2
Mass number decreases by 2, atomic number decreases by 4
Mass number increases by 4, atomic number increases by 2
Mass number stays the same, atomic number decreases by 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In beta negative decay, what change occurs in the atomic structure?
A neutron changes into a positron and a proton
An electron changes into a proton and a neutron
A neutron changes into a proton and an electron
A proton changes into a neutron and a positron
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During beta negative decay, what happens to the atomic number of the atom?
It decreases by 1
It increases by 1
It remains the same
It decreases by 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is emitted during beta positive decay?
A beta particle
A neutron
A positron
An alpha particle
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In beta positive decay, how does the atomic number change?
It decreases by 2
It remains the same
It decreases by 1
It increases by 1
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