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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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tankster tankster
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7 years ago
When an unstable nucleus decays by emitting an alpha particle, the atomic mass number of the nucleus
A) increases by 4.
B) increases by 2.
C) decreases by 2.
D) decreases by 4.
E) remains unchanged.
Textbook 
Physics

Physics


Edition: 4th
Author:
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Raj.SRaj.S
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7 years ago
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tankster Author
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7 years ago
Smart ... Thanks!
courtneyrmcd
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Yesterday
Brilliant ツ
husne
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2 hours ago
This helped my grade so much Perfect
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