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Each electron has a charge of -1 (that is, they are negatively charged). Electrons are distributed around the volume of the atom of which they are a part in 'shells', 'orbits' or 'energy levels', which are all different terms used to describe the electronic structure of atoms, an impo...
These different types of mixtures are interesting but might not be essential knowledge for GCSE Chemistry. The descriptions are non-technical (omitting details, e.g. of particle sizes), but sufficient for general comparison.The substances of which a mixture is formed can sometimes be identified ...
Follow the goals you have set for yourself, even if this means supplementing the work that is done in your course. For instance, if your goal is to have a good accent, you can work on your pronunciation if it is not stressed in your course....
This paper investigates relatively poor male GCSE scores at Stanground College, Peterborough. By 1995 girls outperformed boys by an average half grade acro... Barker,Bernard - 《Educational Review》 被引量: 43发表: 1997年 Valuing Human Diversity: What Is Really Happening on Campuses across the ...
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The biosphere is often broken down into smaller groups of related things to make it easier to understand its structure. For example, we may break it down like this: Biosphere- The biosphere contains all living things on Earth. Biome- A biome is a large collection of organisms occupying a ma...
What is the principle of flame photometry? In principle, it isa controlled flame test with the intensity of the flame color quantified by photoelectric circuitry. The intensity of the colour will depend on the energy that had been absorbed by the atoms that was sufficient to vaporise them. The...
Let's go back to GCSE Physics for a quick refresh. There are two types of electric current. EV batteries store DC (direct current), but domestically the UK runs on AC (alternating current). EVs are built with onboard chargers to handle the conversion from...
2. Spectroscopy is the different energy levels present in an atom or molecule a chemical test used to identify atoms or molecules a type of electromagnetic radiation the field of science that examines how matter interacts with light or electromagnetic radiation ...