1 / 21

Day 6:

Day 6:. NUCLIDE QUIZ Radioactivity – Ch. 18 Section 2 Practice ! Alpha and beta radiation worksheet Test Pt. 1 = Friday. Radioactivity (or radioactive decay). The process by which an unstable nucleus emits one or more particles or energy in the form of electromagnetic radiation

muncel
Download Presentation

Day 6:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Day 6: • NUCLIDE QUIZ • Radioactivity – Ch. 18 Section 2 • Practice! • Alpha and beta radiation worksheet • Test Pt. 1 = Friday

  2. Radioactivity (or radioactive decay) • The process by which an unstable nucleus emits one or more particles or energy in the form of electromagnetic radiation • Radiation: When particles are emitted from an unstable nucleus • break down and release energy

  3. The result… • A change in the identity of the atom – it becomes another element

  4. Radioactive Isotope • An isotope of an element that has an unstable nucleus and is radioactive • Exist for many elements on the periodic table • Example: • Carbon-14

  5. 3 Types of Radioactivity • Three types of Radioactivity • Alpha () – high energy helium nucleus • Beta (β) – high energy electron • Gamma (γ) – high energy electromagnetic radiation

  6. Alpha Particle - • Large particle emitted from the nucleus • High energy helium nucleus Particle: • Can be stopped by skin or a sheet of paper

  7. Alpha Emission alpha particle radioactive isotope neutron proton Timberlake, Chemistry 7th Edition, page 87

  8. Alpha Decay • Radioactive decay that occurs when a radioisotope emits an alpha particle • Balanced Equation:

  9. Alpha Decay Practice • Write a balanced equation for the alpha decay of Uranium-233. • Answer:

  10. Beta Particle - • High energy electron-like particle emitted b a neutron in the nucleus. The neutron then changes into a proton. • Particle: • Can be stopped by a few sheets of aluminum foil, heavy clothing, or wood

  11. Beta Emission Timberlake, Chemistry 7th Edition, page 90

  12. Beta Decay • Radioactive decay that occurs when a radioisotope emits a beta particle • Balanced Equation:

  13. Beta Decay Practice • Write a balanced equation for the beta decay of Copper-66. • Answer:

  14. Gamma Ray - γ • The high-energy photon emitted by a nucleus during fission and radioactive decay • Can be produced during several different types of radioactive decay • Pass through most substances with ease • Can be stopped by thick walls of concrete or lead

  15. Absorption of Radiation Timberlake, Chemistry 7th Edition, page 84

  16. Fission vs. Fusion • Both turn matter into Energy, but in different ways… Fission vs. Fusion

  17. Nuclear Fission (to come apart) • The splitting of the nucleus of a large atom into two or more fragments, a process that produces additional neutrons and a lot of energy

  18. Nuclear Fusion (to come together) • The combination of the nuclei of small atoms to form a larger nucleus, a process that releases energy

  19.  Practice  • Practice writing balanced equations for nuclear reactions with the Nuclear Reactions worksheet.

  20. Day 7 • Finish Radioactivity & Nuclear Reactions • Revision sheet! • Ch.3 Part 1: TEST TOMORROW!!

  21. Ch.3: Part 1 Test! • Atomic Theory • History of the Atom • Structure of the Atom • Nuclides • Radioactivity & Nuclear Energy

More Related