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Chromium

Page history last edited by chromium 6 years, 3 months ago

 Periodic Network

 

 

 Quote:

When in deficit, use chromium.

 

Status update:

11/13/1779-I live! Not a metal yet, but I'm not picky. I was created by a French chemist named Louis-Nicholas Vauquelin. He was experimenting with crocoite, also known as siberian red lead, and he made me, chromium oxide when he mixed it with hydrochloric acid.

12/10/1798-Finally, I'm a metal! Turns out I just needed to be heated in a charcoal oven. Fun fact: My name comes from a greek word named chroma, which translates to color! To find out why, read my activities and interests section.

5/18/1889-Back in my home country, France! It changed a lot since I was born. Time to go check out this "Eiffel Tower" that everyone seems worked up about. It's in the same place that a German chemist named Tassaert discovered that I could be found in a chromite ore. Today, chromite is an important chromium source. 

11/4/13-Just got in a relationship with lanthanum! We don't lose anything from our relationship, but we don't gain anything either. We just make lanthanum chromite, a solid oxide fuel cell.

 


Overview:

-I am a crystalline, lustrous, very hard, and steel gray transition metal

-I am very resistant to corrosion

-my amu scale reads 52, so I am pretty light compared to those radioactive elements.

-I have a high melting point, 3465 degrees fahrenheit. I am used in many metal alloys and platings because of my high melting point.

Information:

 

Relationship Status: 

11/4/13-In a metallic bond with lanthanum.

Primary Relationship: 

Lanthanum 

network: 

metal 

valence electrons:

1

reactivity: I don't react well with water or oxygen, but I react very well with halogens, such as fluorine, and acids. My reactivity with halogens is due to the fact that I have only one valence electron to lose, and halogens need1 more electron to fill their valence shell
state of matter:  solid 
Location on Periodic Table: period 4, group 6 

Birthday: 

1797 

Hometown: 

I was discovered in 1797 in France by a chemist named Louis-Nicholas Vauquelin. 

Movies: 

Chromium Kane 

Activities & Interests:

-I love being used in hundred of different colorful compounds! Did you know that my compounds give rubies and emeralds their color? That why my name comes from the greek word chroma, meaning color.

-My metal is used to harden steel, and to use as plating to make a hard, lustrous surface that does not corrode easily.  

-Some other uses of my compounds are pigments, oxidizing agents, and mordants. I think it's ironic that some of my compounds are oxidizing agents. By the way, a mordant is something that fixes a dye into a material. I am also a catalyst.

-I love being used in making stainless steel! I'm 10 percent of it, in fact! I am very strong and have a high melting point, so I'm used in armor plates, safes, ball bearings, and cutting tools. Cutting tools is the most exciting of all those! However, you should know, that although all my compounds are very colorful, they are also toxic.

-I am an essential mineral for the human body. I am used for insulin, a hormone that you body uses to change carbohydrates and fats into energy. My supplements can help people with diabetes, a disease where sugar builds up in the bloodstream.

-Because I have 1 valence electron, I readily react with the halogens. I do not, however, react well with air or water, and I am very corrosion-resistant.

 

 


Places:

- Inside Earth's crust, getting really hot in here. I think I'm near a volcano. 8/2/00

-Man, South Africa is amazing! There are a bunch of my kind here! Uh-oh. Back off, lion! 10/23/04

-I honestly don't know how my phone is working underwater. Here comes a fish! 12/3/11

 -Checking in after the reaction: Na2Cr2O7 + 2 C → Cr2O3 + Na2CO3 + CO. It's a really long equation that is a part of the process to make pure chromium, which isn't as simple as you may think.


 

Photos:     

 

 

 

 Atom and Bonding Diagrams

 

 

 

 

 

 



 

 

 

Bohr

P=24

N=28

E=24

 

Electron Dot

I have 1 valence electron

 

Chemical symbol: Cr

Atomic number:24

Atomic Mass:51.996

 

 

 

 

 Me and my friends - Around the World

 

 

 

 

 

 

 




 



 

 
 

I give rubies their color. How? I replace the aluminum+3 ions in the crystal lattice of corundum, or crystalline aluminum oxide.  

 I am about 10 percent of stainless steel. The other parts are iron and nickel.                                                                                                                                                           

Chromium oxide, or me-oxide, is used in glass making as a green coloring. 

This school bus is painted with chrome yellow, a yellow pigment made up of lead(ll) chromate.                                                

I color emeralds too! I color emerald in pretty much the same way I color rubies, except for the fact that emeralds don't come from corundum crystals, they come from beryl crystals. Beryl is a mineral with the chemical formula Be3Al2(SiO3)6

 

 


Groups:

-I am part of the transition metals.

-I am in period 4, group 6.

 

 

Resources:

 

 

-Thomas Jefferson National Accelerator Facility - Office of Science Education. "The Element Chromium." It's Elemental -. N.p., n.d. Web. 10 Oct. 2013. <http://education.jlab.org/itselemental/ele024.html>.

-Helmenstein, Anne Marie, Ph.D. "Chromium Facts." About.com Chemistry. N.p., 2013. Web. 10 Oct. 2013. <http://chemistry.about.com/od/elementfacts/a/chromium.htm>.

-Winter, Mark. "Chromium." WebElements Periodic Table of the Elements. N.p., 1993. Web. 10 Oct. 2013. <http://www.webelements.com/chromium/>.

-"Chromium." Wikipedia. Wikimedia Foundation, 10 Oct. 2013. Web. 10 Oct. 2013. <http://en.wikipedia.org/wiki/Chromium>

-"Chromium." University of Maryland Medical Center. N.p., n.d. Web. 10 Oct. 2013. <http://umm.edu/health/medical/altmed/supplement/chromium>.

PICTURES:

-google chrome icon picture from:

"Chrome." App Store. N.p., n.d. Web. 15 Oct. 2013. <https://itunes.apple.com/us/app/chrome/id535886823?mt=8>

Bentor, Yinon. Chemical Element.com - ChromiumOct. 15, 2013 <http://www.chemicalelements.com/elements/cr.html>

"Ruby." Wikipedia. Wikimedia Foundation, 10 Sept. 2013. Web. 16 Oct. 2013. <http://en.wikipedia.org/wiki/Ruby>

"Emerald." Wikipedia. Wikimedia Foundation, 16 Oct. 2013. Web. 16 Oct. 2013. <http://en.wikipedia.org/wiki/Emerald>

"Venetian Green Glass Vase." Le Barn. N.p., n.d. Web. 16 Oct. 2013. <http://www.lebarn.com/antique/venetian-green-glass-vase>

"Beryl Mineral Data." Beryl Mineral Data. N.p., n.d. Web. 17 Oct. 2013. <http://webmineral.com/data/Beryl.shtml>

Helmenstine, Ann. "Science Notes and Projects." Sciencenotes.org. WordPress, 29 May 2013. Web. 17 Oct. 2013. <http://sciencenotes.org/>

 

 

 

 

Friends:    

 

Scandium

Titanium

Vanadium

 

Iron

 

Cobalt

Nickel  

 

Copper

 

Zinc

 

Yttrium

 

Zirconium

 

Niobium

 

Molybdenum  

 

Technetium

 

Ruthenium

 

Silver

 

Cadmium  

 

Hafnium  

 

Tantalum

 

Tungsten

 

Rhenium

 

Osmium

 

Iridium

 

Platinum

Gold  

Mercury  

Lanthanum

 

 

Actinium

     

 


 

 

Periodic Network

 

 

 

 

Comments (10)

Andrea Salem said

at 3:42 pm on Oct 24, 2013

Great profile! What is a reading bond? Can you describe it to me?

chromium said

at 9:43 am on Oct 29, 2013

Oh, that should be "ready to bond". I don't know if there is such thing as a reading bond.

lanthanum said

at 8:00 pm on Nov 4, 2013

Hey chromium! How about you and I do some bonding and create some lanthanum chromite! You won't regret it. :D

chromium said

at 9:39 pm on Nov 4, 2013

Sure! Lanthanum chromite is awesome! Plus, no one else wants me in a relationship. (I remembered that we had to reply, not post a new comment)

chromium said

at 9:12 pm on Nov 4, 2013

Sure! Lanthanum chromite is awesome! Plus, no one else wants me in a relationship.

iron said

at 9:15 pm on Nov 4, 2013

together, we can be stronger and become titanium!

chromium said

at 9:38 pm on Nov 4, 2013

Sorry, I'm already in a relationship with lanthanum. Your offer is very tempting, though.

chromium said

at 9:42 pm on Nov 4, 2013

I am in a metallic bond with lanthanum to create lanthanum chromite, a solid oxide fuel cell.

chromium said

at 9:45 pm on Nov 4, 2013

Solid oxide fuel cells are great. They are a viable alternative fuel cell, and are more efficient.

rubidium said

at 7:46 pm on Nov 5, 2013

Hey you are amazing. You saved my car from rusting because we decided to coat you on it. I am glad you and oxygen don't get along.

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