What are some examples of alpha particles?

Answer 1

Helium-4 nucleus

Alpha particles are particles that escape from an unstable atomic nucleus that has undergone alpha decay.

There is only one alpha particle, and that is the helium-4 nucleus, #""_2^4He#. Note that only the nucleus is given out, not the electrons, so an alpha particle always has a charge of #+2#, due to the presence of two protons.

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Answer 2

Caleb Adams

Examples of alpha particles include helium-4 nuclei, which consist of two protons and two neutrons, and they are commonly emitted by radioactive decay processes such as alpha decay.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.