Dating by radioactivity


10-May-2020 08:54

These particles have a positive electric charge, and, compared to other particles that can be emitted, are heavy and slow moving.

Alpha decay in an element causes it to change into a lighter element.

In other words, a proton turns into a neutron by emitting a positron, which is the positively charged antiparticle of the electron.

Radioactive decay is a random process, meaning that it is physically impossible to predict whether or not a given atomic nucleus will decay and emit radiation at any given moment.

Instead, it is quantified by half-life, which is the period of time it takes for half of a given sample of nuclei to decay.

Radioactivity has a wide range of uses, including nuclear power, in medicine, and in dating organic and geological samples.

It is also potentially dangerous, as high-energy particles and radiation can damage and kill cells, and alter DNA, causing cancer.These high-energy electrons are known as beta rays, or beta particles.



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