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The number of neutrons in a stable nucleus is usually equal to or slightly greater than the number of protons; and as the atomic number increases, the ratio of the number of neutrons to the number of protons in a stable nucleus increases.
Unstable nuclei are said to be radioactive, and they undergo a transformation to make them more stable, Such a process is called radioactive decay, and we'll look at three types: alpha, beta, and gamma.
Material giving rise to these enhanced exposures has become known as naturally occurring radioactive material (NORM).
NORM is the acronym for Naturally Occurring Radioactive Material, which potentially includes all radioactive elements found in the environment.
The protons and neutrons in the nucleus are held together by a force called the strong nuclear force.
It's stronger than the electrical force between charged particles, since for all atoms besides hydrogen, the strong nuclear force must overcome the electrical repulsion between the protons and electrons .
Radioactive isotopes constantly emit such radiations until they reach their stable states.Example 2: Americium-241 is used to provide intracavitary radiation for the treatment of malignancies. This radioisotope is known to undergo beta- decay, and the daughter nucleus is xenon-131. Example 5: Which of these modes of radioactive decay causes a change in the mass number of the parent nucleus? Since there a total of 8 alpha decays and 6 beta decays, we get Pb. Therefore, the final daughter nucleus is lead-206, choice C. Causes/Other Carcinogens/Medical Treatments/radiation-exposure-and-cancer 2. An alpha particle consists of two protons and two neutrons.This is equivalent to a helium-4, so an alpha particle is also denoted by BETA DECAY There are actually three types of beta decay: beta-, beta , and electron capture.
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In fact, of the four fundamental forces of nature, the strong nuclear force is the most powerful .