Examlex
What did the USGS discover when they studied the Slumgullion feature?
Alpha Particle
An alpha particle is a type of ionizing radiation consisting of two protons and two neutrons, emitted from the nucleus of an atom during radioactive decay.
Beta Particle
A high-speed electron or positron emitted by certain types of radioactive decay, representing high-energy, high-speed electrons.
Atomic Nucleus
The central core of an atom containing protons and neutrons, and around which electrons orbit.
Radioactive Material
A material containing unstable nuclei that emit radiation as they decay, including alpha particles, beta particles, and gamma rays.
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