Finding and Using Metals. By Sana Amin , 8B. The relationship between the reactivity of a metal and when it was discovered. History of Metals.
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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Finding and Using Metals
By Sana Amin , 8B
The relationship between the reactivity of a metal and when it was discovered.
Here is the timeline of the discovery of the first metals.
There are various methods of extractions. Smelting is when an ore is heated to high temperatures to separate a metal from its impurities. This method is commonly used to extract Iron. Another common method is Electrolysis. Which utilizes passing electricity through a solution to separate metals. Likewise displacement of metals technology can be used to remove a metal from its compound. For example in class we learnt that we can separate copper from Copper Sulphate solution by mixing it with magnesium. Listed below are some metals that were discovered later on.
Now that we have some information about discovery of metals let us analyze the reactivity series. The Reactivity Series is a list of metallic elements, where the more reactive metals are listed at the top and less reactive ones at the bottom. Some metals react more easily than others. The reactive metals react quickly with acid, oxygen, and water. The alkali metals are a very reactive group of metals.