Radioactivity Lab Report

The type of radiation that is released is beta radiation. Cr-51  Mn-51 + -10e 19.

Gamma: this is a ray of electric radiations this is a part of electromagnetic spectrum. In the high energy and low wave frequency part. When ionising gamma rays pass through gamma because they are weak, travel through space and vacuum.

The A simple definition of the word radioactiveis to have or develope a strong and dangerous form of energy. This could also be named radiation. A radioactive substance incvolves a very harmful form of energy that is developed betwen nuclear reactions. In the book "The Radioactive Boyscout" by ken Silversteint, there are several examples of radioactive substances being produced. The main character in the book is very as the title says "radioactive"

Radiation was discovered in 1895 by Wilhelm Roentgen during a scientific experiment. Roentgen, classified radioactivity into three concepts: negative, positive, and electrically neutral. Radiation- is the emission or transmission of energy in the form of waves or particles through space or through a material medium. Technology is created with radiation and humans are exposed to the aspect daily with tons or material; especially in the doctor’s office and everywhere else.

Due to the smaller mass, it is able to travel further in air, up to a few meters, and can be stopped by a thick piece of plastic, or even a stack of paper. It can penetrate skin a few centimeters, posing somewhat of an external health risk. However, the main threat is still primarily from internal emission from ingested material. Gamma radiation, unlike alpha or beta, does not consist of any particles, instead consisting of a photon of energy being emitted from an unstable nucleus. Having no mass or charge, gamma radiation can travel much farther through air than alpha or beta, losing on average half its energy for every 500 feet.

Introduction Beginning in 1896, radioactivity was the first time that mentioned in new science, the discovery of

Due to their size, alpha particles are unable to

An Alpha ray is also known as an Alpha particle. These particles have two protons and two neutrons, so when an atom releases one Alpha particle that atom’s atomic number decreases by two. A Beta ray, also known as a Beta particle, is a fast-moving, high-energy electron emitted by radioactive decay of substances. Ernest Rutherford identified alpha particles as helium nuclei. Ernest Rutherford also postulated the nuclear structure of the atom. This means that he came up with the idea and convinced people that an atom had a nuclear structure, which it does. Another fun fact, is that he went to Cambridge University off of a scholarship that he earned. He became a pupil of J.J. Thompson. Late into the year, he became Thompson first graduate student. Eventually, he contributed and led to the exploration of nuclear physics. Ernest Rutherford was Cambridge University’s very first research student, states the Chemical Heritage Foundation and the Nobel

Radioactivity is when energy is emitted from the nucleus due to the nucleus being unstable. The 3 types of radiation are Alpha ,Beta and gamma. Alpha particles have 2 protons and two neutrons. Examples of radioactive nuclei that emit alpha radiation. Are : uranium, thorium, actinium, and radium They are very ionising so they give energy off onto whatever they are in contact with. Therefore, it loses energy more quickly. They are not very penetrating so can be stopped by a piece of paper or skin. Beta particles have 1

Radioactivity is defined as “the spontaneous emission of particles”. (Nuclear Energy). Radioactivity is caused by an unbalanced nucleus in the cell. This happens because there is either an uneven number of protons and/or neutrons. When this happens, the element is considered to have multiple isotopes. An isotope is an atom with the same number of protons but a different number of neutrons. Thus, they have different atomic weights. This is important to know because there is a such thing as a radioactive isotope. These elements just have additional energy, and they release radiation in different forms. “There are over 800 radioactive isotopes, some of which are natural and some synthetic.” (Helmenstine). Radioactive elements can be both artificial and natural. However, in medicine, most of them are more than likely synthetic, since they are the most popular types.

Radiation is one of the main forms of energy (Pettigrew 1). In today’s environment we are only familiar with the basic types of radiation. These types are in the form of

It is often said that the early bird gets the worm, but that is not the case for school start times. Many schools across the country have adolescents wake up in the wee hours of the morning to get ready and go to school. Evidence from complete studies suggests that teenagers are seriously sleep deprived. Waking up so early is not always beneficial, although some people do believe that it is efficient. School start times should be later because it improves adolescents’ health and academic performance, and it can increase the safety of the community.

After electromagnetism comes weak nuclear force. Weak nuclear force is responsible for the decay in radioactivity. It is

Natural sources exist in several geological formations such as soils, rocks, sediments, vegetation, water and air emit radiation. While 4% is of artificial origin (Chougan-kar et al., 2003; El-Daly and Hussein, 2008) [1]. The natural radioactivity of soil samples determined from the 226Ra, 232Th and40K contents. Rocks and soils contribute considerably to indoor and outdoor exposure to the environmental radioactivity by gamma radiation emitting mainly from 226Ra, 232Th and 40K contents, and beta radiation.

In order to appreciate how radiation energy works, it is imperative to know the types of radiation. The different sources of radiation can be grouped under either Ionising radiation or Non-ionising radiation. Ionizing radiation is a type of radiation that is made up of high-energy waves which has the capability of displacing and breaking atomic electron bonds holding up the molecules of matter together resulting in chemical change which can lead to harmful effects. Ionizing radiation can further be divided into either;