Safety Aspects of Nuclear Reactors Nuclear Fuel The fuel used in nuclear reactors is called enriched uranium This is U-238 enriched with U-235 as U-235 is the isotope that undergoes fission ...
Edexcel IGCSE Chemistry 复习笔记 2.3.4 Carbon Dioxide from Thermal Decomposition Carbon Dioxide from Thermal Decomposition Thermal decomposition is the term used to describe reactions where ...
Components of a Nuclear Reactor Moderator The purpose of a moderator: To slow down neutrons The moderator is a material that surrounds the fuel rods and control rods inside the reactor core ...
Edexcel IGCSE Chemistry 复习笔记 2.3.3 Combustion Combustion Combustion is the scientific word for burning All combustion reactions involve a chemical change in which oxygen reacts with elem...
Edexcel IGCSE Chemistry 复习笔记 2.3.2 Practical: Determine the % of Oxygen in Air Practical: Determine the Percentage of Oxygen in Air Aim: To determine the percentage of oxygen in air using the o...
Edexcel IGCSE Chemistry 复习笔记 2.3.1 Composition of Air Composition of Air The proportion of gases in the air has not changed much in 200 million years About four fifths of the air is nitr...
Induced Fission Induced nuclear fission occurs: When a stable nucleus splits into small nuclei from the bombardment of a slow-moving neutron For example, when a uranium-235 nucleus absorbs a...
Binding Energy per Nucleon Graph In order to compare nuclear stability, it is more useful to look at the binding energy per nucleon The binding energy per nucleon is defined as: The binding ...
Nuclear Fusion & Fission Nuclear Fusion Fusion is defined as: The fusing together of two small nuclei to produce a larger nucleus Low mass nuclei (such as hydrogen and helium) can underg...
