Radioactive contamination

the radioactive rays were produced and neither did anyone until Henri Becquerel was experimenting with uranium salts and discover that the rays were emitting from the salts themselves and was named “radioactivity” by Marie Curie. Radiation is produced by both natural and artificial/man-made sources. Natural sources that would produce radiation in Earth or its atmosphere would be cosmic rays that emit radiation in big rays that reach the Earth from space, rocks and debris that emit radioactive…

The girls were blind to the true effects of radium; in fact, most everyone in that time period thought that all forms of radium were good for you. Back then, radium was like Aloe Vera today, it was used for a wide variety of causes, believed to improve overall health. People believed that radium could cure anything, from arthritis to high blood pressure- it was even once believed to be the absolute cure for cancer when ingested. Radium, found in uranium, is actually a rare chemical element of…

Once a living thing dies, the carbon dating process begins. As long as an organism is alive it will continue to take in 14C or radio carbon; however, when it dies, it will stop. Since 14C is radioactive (decays into 14N), the amount of 14C in a dead organism gets less and less over time. Therefore, part of the dating process involves measuring the amount of 14C that remains after some has decayed. Scientists now use a device called AMS (don't know what it stands for) to figure out the ratio of…

Collectively the pennies represent a radioactive sample, and each penny is an atom. Because each penny has a 50% chance of decaying it can represent a radioactive atom. When the atoms are grouped together it becomes a sample of a radioactive element. For the simulation to work one has to assume that a coin toss has a 50% chance of landing on heads and a 50% chance of landing on tails. If this is not true then the trial will not be a true half-life because more or less than half of the atoms…

exponential decay. Exponential decay can be described using the mathematical model y=a×e^(-bx). A prominent example of naturally occurring random exponential decay is the process of radioactive decay. Some isotopes of nature are considered radioactive due to a specific characteristic of their nucleus. Radioactive isotopes, or radioisotopes, do not contain the proper amount of neutrons. As a result of this, the nucleus of radioisotopes is unstable. The instability causes them to emit particles…

Iridium-192 is a radioactive isotope that’s used daily in a series of world changing ways. It’s a synthetically produced metal, made as a by-product of nickel and copper, and the Iridium-containing ores are found in the U.S.A, Alaska, South Africa and Australia. Used both in the medical and industrial world, this radioisotope is underappreciated for its benefits to society. Though there are some risks, the reward undeniably outweighs them. Iridium-192 has a half-life of approximately 73 days,…

The medical use of radioactive isotopes for cancer treatment can be classified as radiation therapy. The radiation that specific isotopes give off are utilized for effecting cancer cells. First of all, what is radiation? Radiation is energy that is carried by waves of streams of particles. The energy from radiation damages the genes (DNA) in the cancer cells. The damage done to the cells prevent them from growing and dividing, and often cause them to die off. Nearby normal and healthy cells can…

for a substance to decay to half its original mass and a half life of 110 min allows the radioactive isotope to decay from your body rapidly enough to minimalise the dosage of radiation that is received by the patient. However the 110 minute half-life is supplementary for the storage of the isotope and will allow for it to sustain its radioactivity during the time-consuming process of a PET Scan. The radioactive tracer consists of fluoride-18 chemically bonded with glucose, which is the carrier…

used for the destruction of humanity in history this paper discuss on how it has been helpful through medical aspects. Nuclear chemistry is related with radioactivity, nuclear processes, and properties. In order to build a nuclear process, radioactive elements are combined with nuclear reactors. In order to identify which chemicals should be used for medical purpose, it is important to study the absorption and radiation of certain chemicals in living organisms. Nuclear chemistry is a…

I n 1898, the radioactive elements Radium and Polonium were found by Marie and Pierre Curie. Thus the concept of treating cancers was born. The Curie’s work on radiation led to the possibility of cancer treatment, but also provided a better understanding of the atom. That is that an atom has a nucleus at its centre with surrounding energy shells which consist of negatively charged electrons. The electron was discovered in 1897 by J.J. Tomson, and was the first proved element of the atom. The…