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Chapter III: Radiation Of The New Radioactive Substances, Pt 2 - Marie Curie - Radioactive Substances (File)

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  1. The half-life: (t 1/2) is the time taken for the activity of a given amount of a radioactive substance to decay to half of its initial value; see List of nuclides.
  2. A radioactive substance is unstable and produces dangerous kinds of radiation. Radioactive substances produce three types of dangerous radiation: alpha particles are the nuclei of helium atoms.
  3. Marie coined the term radioactivity for the spontaneous emission of ionizing, penetrating rays by certain atoms. Experiments conducted by British physicist Ernest Rutherford in showed that radioactive substances emit more than one kind of radiation. It was determined that part of the radiation is times more penetrating than the rest.
  4. The nature of radioactive emissions. The emissions of the most common forms of spontaneous radioactive decay are the alpha (α) particle, the beta (β) particle, the gamma (γ) ray, and the neutrino. The alpha particle is actually the nucleus of a helium-4 atom, with two positive charges 4 / 2 He. Such charged atoms are called ions.
  5. Several radioactive substances are considered carcinogens, but their carcinogenic activity is attributed to the radiation, for example gamma rays and alpha particles, which they emit. Common examples of non-radioactive carcinogens are inhaled asbestos, certain dioxins, and tobacco smoke.
  6. Dec 02,  · Particles In Paris: (The Enchanted Library #1) - Travel Back In Time To Meet Marie Curie - Kindle edition by Fox, Jules, Fox, Jules. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Particles In Paris: (The Enchanted Library #1) - Travel Back In Time To Meet Marie tiocossladnahosolfenisdespvacuten.coinfos:
  7. Radioactive hazards are the result of unconfined radioactive substances flowing freely through the air. When working with radioactive isotopes, a person can be at risk of tissue damage. Marie.
  8. Marie Skłodowska Curie (/ ˈ k j ʊər i / KEWR-ee, French: Polish:), born Maria Salomea Skłodowska (Polish: [ˈmarja salɔˈmɛa skwɔˈdɔfska]; 7 November – 4 July ), was a Polish and naturalized-French physicist and chemist who conducted pioneering research on tiocossladnahosolfenisdespvacuten.coinfo was the first woman to win a Nobel Prize, the first person and the only woman to win the Nobel.

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