1 / 13

Understanding Radiation Emission and Isotope Decay: Alpha, Beta, and Gamma Radiation Explained

This article explores the fundamentals of radiation emitted from unstable atomic nuclei, focusing on alpha, beta, and gamma radiation types. It details the characteristics of each radiation type, how they are stopped, and the significance of half-lives in radioactive decay. Utilizing the example of the isotope 60Co, it demonstrates practical calculations on how much of a radioactive substance remains after a given time. The text also examines the outcomes of alpha particle emission and the nature of nuclear fission reactions.

callum-pace
Télécharger la présentation

Understanding Radiation Emission and Isotope Decay: Alpha, Beta, and Gamma Radiation Explained

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. Nuclear Nat 5 5 1 2 3 4 6 7 8 9 10 12 11

  2. Why is radiation emitted from atoms? Because there nucleus is unstable. Due to the proton to neutron ratio.

  3. A alpha particle consists of… 2 protons and 2 neutrons: it is a a helium atom.

  4. Beta radiation is described as … A high speed electron

  5. Gamma radiation is described as … A wave

  6. Alpha is stopped by… Thin paper and a few cm of air.

  7. Beta is stopped by… Thick lead, concrete and Aluminium.

  8. Gammais stopped by… Concrete or lead.

  9. 60Co 60Co 60Co 60Co 60Co 6g 3g 1.5g 0.75g 0.375g 6g of a radioactive isotope of 60Co has a half-life of 5 yrs. how much of this isotope would be left after 20 yrs? The half life of a radio active isotope is a measure of the time is takes for activity to be reduced by half. Over a period of 20 years, 4 half-lives would be needed .

  10. What is the result of an atom losing an alpha  particle? An alpha particle is a helium nucleus. So is made up from 2 protons and 2 neutrons. It has a atomic number of 2 and a mass number of 4. So the atomic number decreases by 2 and the mass number decreases by 4.

  11. 236 142 91 1 U Ba Kr + + 3 0 92 56 36 What type of reaction is occurring in the process below? Nuclear fission this involves the splitting of a nucleus into two nucleui.

  12. X = X 239 n 238 Pu 1 + U 0 93 + 0 e -1 What is produced (X) when 238U is combined with a neutron. Adding a neutron means the mass number will increase by 1, but the atomic number will not change.

  13. 8 16 131I 131I 131I 0.174g 0.694g 0.347g 131I can be used to study diseased thyroid glands. Its half-life is 8 days. A patient was given 0.0053 mol of this isotope. How many grams would be left after 16 days? The mass of 131I in 0.0053g = n (number moles) = mass/gfm So mass = n x gfm = 0.0053x131 = 0.694g

More Related