14826323
Descrição
FlashCards por Lucy Crowe, atualizado more than 1 year ago
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Criado por Lucy Crowe
mais de 6 anos atrás
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| Questão | Responda |
| How do you Calculate a half-life? | Double the amount of time and divide the counts by two. |
| What is a half life? | The rate of the decay of a material. |
| What is a radionuclide? | A radioactive isotope is called radionuclide. |
| What are the Strength of the 3 Types of Decay? | Alpha Decay, Beta Decay and Gamma Decay |
| What is the strength of Alpha Decay? | An alpha particle is produced, this is the same as the helium nucleus. |
| What is the strength of Beta Decay? | During beta decay a neutron is turned into a proton and beta particle (an electron) leaves the nucleus. |
| What is the strength of Gamma Decay? | It is a form or electromagnetic radiation. Gamma rays have the most energy and therefore cause the most damage. |
| What is the radioactive decay symbol for Alpha Decay? | |
| What is the radioactive decay symbol for Betta Decay? | |
| What is the radioactive decay symbol for Gamma Decay? | |
| How is radiation used in medicine? | Radiation is widely used in the diagnosis of certain diseases through x-rays. |
| What are Strontium and samarium isotopes? | Strontium and samarium isotopes are used to relieve the pain caused by bone cancers. |
| What are the features of a chemical reaction? | Changes of a chemical reaction are change of colour, change of temperature and gas. |
| What are the symbols of state? | S= Solid G= Gas L= Liquid AQ= Aqueous |
| What is Exothermic? | The extra energy can be released as heat energy this is an exothermic reaction and it is more stable. |
| What is Endothermic? | Endothermic is less stable and the atoms need to gain energy from the new arrangement. |
| What are balancing equations? | To balance equations you have to add coefficients as required and if it's a one leave it blank. |
| What are radioisotopes? | Radioisotopes are man made, they're made by combing protons and neutrons and are unstable. |
| Concerning Radioactive Isotopes, how do you find out the number of electrons? | It is still the atomic number and has not changed. |
| Concerning Radioactive Isotopes, how do you find out the number of neutrons and protons? | The mass number - atomic number Example; Nitrogen = 16, so the no. of neutrons is 16 - 7. |
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