Quick Answer: What Is Radioactivity And Its Causes?

What is radioactivity in simple words?

1 : the giving off of rays of energy or particles by the breaking apart of atoms of certain elements (as uranium) 2 : the rays or particles that are given off when atoms break apart.



What are the 7 types of radiation?

There are seven natural forms of EMR. Gamma rays have the highest energy and shortest wavelength. Then come X-rays, ultraviolet light, visible light, infrared radiation and microwave radiation. Finally, radio waves have the lowest energy and longest wavelength.

What is radioactive pollution and its effects?

Exposure to very high levels of radiation, such as being close to an atomic blast, can cause acute health effects such as skin burns and acute radiation syndrome (“radiation sickness”). It can also result in long-term health effects such as cancer and cardiovascular disease.

Can a person become radioactive?

If someone has been exposed to radiation, do they carry the radiation in them or is it the contamination—dust, etc. … There is one radiation, well-known but less common than those mentioned above, that is capable of inducing radioactivity in an irradiated person or object; that is neutron radiation.

What are the three causes of radioactivity?

There are different types of radioactivity depending on what particles or energy are released during the reaction. The three types are: alpha particles, beta particles, and gamma rays.

What is radioactivity and types?

The radiation one typically encounters is one of four types: alpha radiation, beta radiation, gamma radiation, and x radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources.

What are the 3 types of radioactivity?

The three most common types of radiation are alpha particles, beta particles, and gamma rays.

What is the purpose of radioactivity?

Radioactive sources are used to study living organisms, to diagnose and treat diseases, to sterilize medical instruments and food, to produce energy for heat and electric power, and to monitor various steps in all types of industrial processes. Tracers are a common application of radioisotopes.

What are the two types of radioactivity?

The two most common modes of natural radioactivity are alpha decay and beta decay. Most nuclear reactions emit energy in the form of gamma rays.

What is the most dangerous type of radiation?

Gamma raysGamma rays are often considered the most dangerous type of radiation to living matter. Unlike alpha and beta particles, which are charged particles, gamma rays are instead forms of energy.

What is radioactivity explain?

As its name implies, radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it “wants” to give up some energy in order to shift to a more stable configuration.

What is radioactivity and why does it occur?

Radioactive decay occurs in unstable atomic nuclei – that is, ones that don’t have enough binding energy to hold the nucleus together due to an excess of either protons or neutrons. … It comes in three main types – named alpha, beta and gamma for the first three letters of the Greek alphabet.

What is radioactivity and why is it dangerous?

Radiation can damage the body’s internal chemistry, breaking up chemical bonds in our tissue, killing cells, and damaging DNA, which may lead to cancer. In very high doses, radiation can cause sickness and death within hours.

Why is iron so stable?

The more stable a nucleus is, the more energy is required, per nucleon, to pull the nucleus apart. This stability is caused by the attractive nuclear force between nucleons. Iron 56 is the most stable nucleus. It is most efficiently bound and has the lowest average mass per nucleon.

What is the main cause of radioactivity?

Radioactivity is caused by an unstable nucleus. The instability is caused by either an excess of protons or an excess of neutrons.