Chromium.

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Presentation transcript:

Chromium

What is Chromium ? Chromium is element number 24 on the Periodic Table of Elements Its Symbol is Cr It is a hard silvery metal with a blue tint

When was Chromium discovered ? Chromium was discovered in 1797 by Louis-Nicolas Vauquelin in Paris. He discovered it while experimenting with other materials. He obtained chromium by heating the element chormite.

What Chromium is used for: Chromium is used to harden steel and to make it from not rusting (Stainless steel)

How is chromium mined or obtained? Chromium is mainly mined as chromite.

Citations https://education.jlab.org/itselemental/ele024.html (second and forth slide) https://www.google.com/search?rlz=1CAHPZY_enUS817&biw=1366&bih=677&tb m=isch&sa=1&ei=VTC1W4OuA5S70PEP-_Oy- AU&q=chromium+element+&oq=chromium+element+&gs_l=img.3..0l10.9708.11 863..12604...0.0..0.51.350.9......1....1..gws-wiz-img.......0i67.V4Toh- 4Yk7g&safe=active&ssui=on (second slide) http://www.rsc.org/periodic-table/element/24/chromium ( fifth slide and second) https://www.greatmining.com/chromium.html (sixth slide)