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(D) magnetic field exerts a force on moving charged particles according to the Lorentz force law,$F = q(v 	imes B)$. For a particle to be deflected b

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Electrons and $\alpha$-particles

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(D) magnetic field exerts a force on moving charged particles according to the Lorentz force law,$F = q(v 	imes B)$. For a particle to be deflected by a magnetic field,it must possess a net electric charge. Radioactive decay emits $\alpha$-particles (positively charged),$\beta$-particles (electrons,negatively charged),and $\gamma$-rays (electromagnetic radiation,neutral). Since $\alpha$-particles and electrons are charged,they are deflected by a magnetic field. Neutrons are neutral and are not deflected. Therefore,the particles that are deflected are electrons and $\alpha$-particles.

The particles emitted by radioactive decay that are deflected by a magnetic field are:

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