Everyday Science
NULL
Medium
Question
Alpha particles are compact clusters of ______________?
A
Electron and Proton
B
Two Protons and two Neutrons
✓ Official correct answer
C
Three protons and three Neutrons
D
None
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Electron and Proton
No member explanations yet for this option.
B
Two Protons and two Neutrons
No member explanations yet for this option.
C
Three protons and three Neutrons
No member explanations yet for this option.
D
None
No member explanations yet for this option.
Explanation
An alpha particle is a helium nucleus: two protons and two neutrons.
So the correct answer is Two Protons and two Neutrons.
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