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 The symbol of chromium is Cr  Scientist Louis Nicolas vauquelin discovered chromium in 1797  The origin of its name is from the Greek word name chorma.

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Presentation on theme: " The symbol of chromium is Cr  Scientist Louis Nicolas vauquelin discovered chromium in 1797  The origin of its name is from the Greek word name chorma."— Presentation transcript:

1  The symbol of chromium is Cr  Scientist Louis Nicolas vauquelin discovered chromium in 1797  The origin of its name is from the Greek word name chorma which means color.

2  The normal state of chromium is a solid.  The melting point of chromium is 2130.2 k  Boiling point of chromium is 2963k

3  The classification of chromium is metal  My element belongs to the transitional metal family  Cost of chromium $32 for 100 g.

4  Number of protons is 24  Number of electrons is 24  Numbers of 28

5  1. uses of chromium dyes and paints, stainless steel, magnetic tape.  2. chromium is a solid at below room temperature.  3.it comes from a ore called chromite

6  4. chromium can be produced from chromites by reducing the oxygen with aluminum  5. Chromium is used to harden steel and resistant to corrosion

7  http:chemistry.about.com/od/chromium/a/10 -Chromium-Facts.htm http:chemistry.about.com/od/chromium/a/10 -Chromium-Facts.htm  http://sciencespot.net/Pages/kidzone.html http://sciencespot.net/Pages/kidzone.html


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