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After undergoing alpha decay, an atom of radium-226 becomes a. thorium-234 c. uranium-238 b. radon-222 d. radium-224 Can someone give me an walk through

After undergoing alpha decay, an atom of radium-226 becomes a. thorium-234 c. uranium-238 b. radon-222 d. radium-224 Can someone give me an walk through
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After undergoing alpha decay, an atom of radium-226 becomes

a. thorium-234
c. uranium-238
b. radon-222
d. radium-224

Can someone give me an walk through

asked
User TreeAndLeaf
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8.6k points

1 Answer

2 votes
The answer is b. radon-222. The alpha decay means that it will emit an alpha particle when decays. The alpha particle has two protons and two neutrons. So Radium(88) minus two protons will become Radon(86). And the atomic mass will become 226-4=222.
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User Dadaso Zanzane
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8.1k points
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