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The 34 pages that link to Alpha particle, each with the reason it gives.

• Alpha decayBroader topic: It is the particle emitted when an unstable nucleus undergoes alpha decay.

• Ionizing radiationBroader topic: Its charge and mass make it strongly ionizing over a short range.

• Ernest RutherfordRelated: Alpha particles served as projectiles in the scattering experiments that revealed the nucleus.

• Gamma rayCompared with: Unlike a gamma ray, an alpha particle has mass, charge, and a nuclear identity.

• Helium-4Broader topic: Helium-4 nuclei released by radioactive decay are called alpha particles.

• Radiation shieldingBroader topic: Alpha particles have short ranges and are usually stopped by thin barriers, but are hazardous if inhaled or swallowed.

• RadonRelated: Radon and its progeny emit alpha particles that can damage cells when inhaled.

• James ChadwickRelated: Polonium alpha particles bombarded beryllium in Chadwick’s decisive experiments.

• Rutherford scatteringRelated: Alpha particles served as the positively charged projectiles in the classic experiments.

• Rutherford modelBroader topic: These particles served as projectiles in the scattering experiment that motivated the model.

• Hans GeigerRelated: Alpha particles were the probes Geiger counted and tracked in the scattering experiments.

• Cathode rayCompared with: Its positive charge and much greater mass contrast with cathode-ray electrons.

• Geiger–Marsden experimentRelated: These were the projectiles fired at the gold foil.

• Irène Joliot-CurieRelated: Alpha-particle bombardment triggered nuclear reactions in the materials they studied.

• RadiotoxicityBroader topic: Its limited penetration makes internal exposure far more concerning than intact-skin exposure.

• AstatineRelated: Astatine-211 releases alpha particles that deposit energy over short distances.

• Beta particleCompared with: It is heavier and more strongly ionizing, but less penetrating, than a beta particle.

• CuriumRelated: Curium-244 sources supply alpha particles for specialized instruments and experiments.

• Frédéric Joliot-CurieRelated: Alpha particles served as projectiles in the Joliot-Curies’ experiments on aluminum and other elements.

• Plum pudding modelRelated: Alpha particles became probes for testing the model’s predicted deflections.

• PoloniumRelated: Polonium’s principal decay emissions are alpha particles.

• BerkeliumRelated: Alpha-particle bombardment added nuclear charge and mass to americium in the discovery reaction.

• Boron neutron capture therapyRelated: The boron reaction produces alpha particles that travel only a short distance through tissue.

• Alexander LitvinenkoBroader topic: Polonium-210 emits alpha particles, which are highly damaging when radioactive material enters the body.

• Neutron radiationCompared with: Alpha particles are charged and strongly ionizing, whereas neutrons are uncharged and often more penetrating.

• Discovery of the neutronRelated: Alpha particles supplied the bombardment that generated the puzzling beryllium radiation.

• Ernest WaltonRelated: The lithium reaction produced alpha particles that provided evidence of nuclear disintegration.

• Geiger–Nuttall lawBroader topic: Its kinetic energy is the measurable quantity used in the law.

• C. T. R. WilsonRelated: Alpha particles produced dense, conspicuous trails in Wilson’s chamber.

• MendeleviumRelated: Alpha-particle bombardment of einsteinium-253 created mendelevium-256.

• Rutherford scattering experimentsRelated: These were the projectiles whose deflections revealed the nucleus.

• Dirty bombRelated: Alpha-emitting material can be especially hazardous if inhaled or ingested, though alpha particles travel poorly through skin.

• Helium atomRelated: An alpha particle is the helium-4 nucleus without its two electrons.

• Elizabeth RonaRelated: Alpha emissions provided a detectable signal in experiments involving polonium and other elements.