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In this video, we look at elements, compounds, mixtures and molecules. First we look at the idea of an element, using examples from the periodic table. I then show you the definition of a compound and the definition of a mixture and how compounds are different from mixtures. Finally, we look at molecules and see how these can be elements or compounds.
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Magnesium "commons.wikime...
By Jurii (images-of-eleme...) [CC BY 3.0 (creativecommon...)], via Wikimedia Commons"
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By Ben Mills [Public domain], from Wikimedia Commons"
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20 авг 2024