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Manganese is a very useful transition metal. Manganese is used in many types of medicine, such as pills. It is also used in batteries, which give us electricity. Manganese is present in the human body. It is important because it helps your body form bones and connective tissue. It also prevents diseases and seizures, controls sugar levels, improves digestion, and boosts metabolism. As you can see, without manganese our body wouldn't have what it needs to work and grow as well as it does today.

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-Manganese was isolated from pyrolusite in 1774
-Pyrolusite is known as manganese dioxide
-During WW1, manganese replaced most of the nickel in US coins

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-education.jlab.org
-webelements.com
-chemistryexplained.com
-thought.co
-lenntech.com

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-dry cell batteries to prevent hydrogen from forming
-remove the green color in glass that is caused by iron
-dry black paints

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-Mn44: 19 neutrons
-Mn45: 20 neutrons
-Mn46: 21 neutrons
-etc.

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-Melting Point: 1517 Kelvin
Boiling Point: 2235 Kelvin
-Density: 7.3 grams per cubic cm
-Abundance in Earth's Crust: .11%

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ChemWiki Elemental Minute: Manganese (Physical Properties)

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-Metal
-Group: Transition

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A revision video on the knowledge required on the transition metals. The knowledge is mainly for AQA but it will apply to other boards too. Remember to Like, Share and Comment!! Subscribe for more videos: https://www.youtube.com/channel/UCnpaRHUJQveayH7KhW1hl9A

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-mixed w/ ores of iron
-common ores are manganite, rhodochrosite, pyrolusite, and psilomelane

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-Brazil
-Asia
-Australia

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Asia's largest manganese ore deposit found in SW China

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A manganese deposit containing more than 192 million tonnes of ore, which is believed to be Asia's largest, has been discovered in southwest China's Guizhou Province.

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Atomic Number-25
Atomic Mass-54.93805

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-Discovered by Johan Gottlieb(Swedish chemist)
-Johan heated pyrolusite in the presence of charcoal