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3 years ago

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To what element does Thorium-230 (atomic number-90) decay when it emits an alpha particle (42He)? a. 22688Ra c. 22886Rn b. 23090

Ra d. 22286Rn

1 answer:

abruzzese [7]3 years ago

5 0

Answer:

Option A

Explanation:

Thorium-230 decays to Radium-226 also emitting an $\alpha$ particle.

<u><em>The reaction is as follows:</em></u>

$^{230}Th$ => $^{226} Ra + ^{4} He$ (Alpha-particle)

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