PPT-Chpt. 8: Radioactivity Trefoil Symbol – symbol for ionising radiation

The Discovery of Radioactivity Henri Becquerel 1896 Investigated the effect of sunlight on crystals of uranium salts By chance he left sample resting on a photographic plate wrapped . What about ionising radiation sources that are not work- related? We are all exposed to natural background radiation from sources outside of work, such as: the earth itself; cosmic radiation from Learning Objectives. I must be able to recall when ionising radiation is emitted. . I should be able to describe the three types of ionising radiation.. I might be able to explain the dangers of ionising radiation.. Ionising Radiation Protection and Nuclear Safety ActUnofficial translation1Prepared: 05.09.05 14:27I.GENERAL PROVISIONSArticle 1(purpose and content)(1) This Act shall regulate ionising radiation prot For . B.Sc. Chemistry (General), Part- I. By. Dr. . Kakoli. . Banerjee. Department of Chemistry. Aims and Objectives. Definition of Radioactivity . Discovery of Radioactivity- The Pioneers. Cause of Radioactivity- Nuclear Instability. Pierre Curie was already a famous scientist before he married Marie Sklodowska in 1895.  This famous couple did not only find true love, they also discovered radium and polonium.  For their groundbreaking research in radioactivity, the couple were awarded the 1903 Nobel Prize in physics.  It was Marie Curie who coined the term "radioactivity", and in her honor, the 1910 Radiology Congress chose the curie as the basic unit of radioactivity.  Pierre died from being run over by a horse drawn wagon, but Marie continued their research, and was eventually awarded a second Nobel Prize, the 1911 prize for Chemistry.  She died in 1934, suffering from pernicious anemia which had undoubtedly been the result of years of radiation exposure.. Week beginning 14. th. November 2016. Important discoveries. The Polish scientist, Marie Curie, and her. husband (Pierre) discovered 2 new elements. which they called “polonium” and. “radium”. The elements were radioactive. Fission produces highly radioactive isotopes. All of the highly radioactive materials on earth have been produced by fission.. Cs-137 (Cesium-137). Cs-137 is . produced by nuclear fission . for use in medical devices and gauges. . Their Effect on Health, The Energy Field. and The Immune System. Dr. Donna M. Starita, DVM, Medical Intuitive. … And Effective Ways To Protect Yourself. Electromagnetism: The Phenomenon Associated With Electricity and Magnetism And Their Interactions With Each Other. Part of Speech: _____. Possible Meaning: . ______________. ______________________. Sentence: . ______________________. ______________________. ______________________. Part of Speech: _____. Possible Meaning: . Lotus utahensis Ottley Plant Symbol = LOUT Common Names: Utah otusUtahbird’sfoot trefoil, Utah birdsfoot trefoilientific Names:Lotus utahensis OttleyDescriptionGeneralUtah trefoilis described as Beside shock blast and heat a nuclear bomb generates high intensity flux of radiation in form of -rays x-rays andneutrons as well as large abundances of short and long-lived radioactive nuclei which c What are they? . exposure … contamination. Are they the same?. Radioactivity. Spontaneous emission of radiation from the nucleus of an unstable isotope. Disintegration Decay. Demonstrate Decontamination. A person working with radioisotopes wears protective clothing and gloves and stands behind a shield.. 2. Radioactive Isotopes. A . radioactive isotope . has an unstable nucleus. emits radiation to become more stable. Do now activity. :. Label the 4 parts of this atom?. What charge is given by the blue particle?. What mass is given to the black particle?. What is the overall charge given to particles in the orange circle?.