Question

Emissions from alpha decay require the least amount of shielding.

Answer 1

The particles released during alpha decay are called alpha particles. Alpha particles have greater mass and charge than other emitted particles.

• Radioactive emissions are the transfer of energy through the flow of particles or waves in a medium
• There are 3 types of radioactive emissions which are alpha, beta and gamma
• In alpha radiation, the nucleus emits an alpha particle which is equivalent to a helium nucleus
• In beta radiation, an electron is emitted to convert a neutron to a proton
• In gamma radiation, the nucleus just loses energy

Since alpha particles have more mass and charge, they are more ionising and lose more energy at a faster rate and can be blocked easily.

Learn more about alpha decay emissions here:

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