What Particle Is Emitted When a Th-228 Nucleus Decays to Ra-224

question 32

Multiple Choice

What particle is emitted when a Th-228 nucleus decays to Ra-224?

• A)alpha
• B)beta
• C)neutron
• D)positron
• E)proton

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Definitions:

Reagents

Chemical substances used in reactions to bring about and probe chemical changes, often to transform reactants into products.

2,2-dimethyloxirane

A type of oxirane with two methyl groups attached to the same carbon atom, used in organic synthesis.

Ethanol

A volatile, flammable, colorless liquid alcohol, used as a solvent, antiseptic, and intoxicant.

Trace of HCl

A very small amount of Hydrochloric acid, often used in chemical reactions.