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alpha particle
This term is a technical designation used primarily in nuclear physics and radiochemistry. It describes a specific type of ionizing radiation consisting of a helium nucleus. Because it is a precise scientific term, it is used in a neutral, objective register and does not carry emotional connotation.
In a practical sense, alpha particles are characterized by their relatively large mass and positive charge, which results in low penetration power compared to beta or gamma radiation. Consequently, the term often appears in contexts discussing radiation shielding, smoke detectors, or the decay of heavy elements like uranium and radium.
Meanings
Examples
An alpha particle is essentially a helium nucleus.
An alpha particle is essentially a helium nucleus.
The gold foil experiment showed that the alpha particle was deflected by a dense nucleus.
Can an alpha particle penetrate through a sheet of paper?
The sensor detected a single alpha particle hitting the surface.
I wonder if this isotope emits an alpha particle or a beta particle.
An alpha particle has a positive charge of plus two.
The radioactive source releases an alpha particle during the decay process.
Wait, so the alpha particle is much heavier than an electron?