What is chromium?
Chromium is a hard white metal that can also be many other colours depending on the compound. It can show as black, grey, green, blue, purple, orange, yellow and red. It is solid at room temperature and melts at 1,907 degrees Celsius. However, it’s boiling point is 2,627 degrees Celsius. Chromium becomes paramagnetic above 38 degrees Celsius. There are two forms of chromium, one type is found in medicines and is safe for humans while on the other hand, the second type is toxic and can cause lung cancer.
How was chromium discovered?
Chromium was discovered by Nicolas-Louis Vauquelin, a chemistry professor born in 1763. It was discovered in 1797, while Vauquelin was experimenting with Siberian red lead. He made chromium by mixing crocoite with hydrochloric acid.
What is chromium’s purpose?
Chromium is used in medicines for blood sugar control in people with prediabetes, as well as type 1 and type 2 diabetes.
It is also commonly used for pigments (it is found in paints). Another use is to coat cars, stoves, and other appliances to protect them from corrosion. It is also used in stainless steel.
Periodic table information:
Element Name: Chromium
Symbol: Cr
Atomic number: 24
Atomic mass: 52 (51.996)
# of protons # of neutrons # of electrons: 24p, 28n, 24e.
Bibliography:
“Chromium: Uses, Side Effects, Interactions, Dosage, and Warning.” WebMD, WebMD, www.webmd.com/vitamins/ai/ingredientmono-932/chromium.
Helmenstine, Anne Marie. “10 Interesting Chromium Facts.” ThoughtCo, ThoughtCo, 2 Sept. 2019, www.thoughtco.com/facts-about-the-element-chromium-606140.
Helmenstine, Anne Marie. “Get the Facts About the Element Chromium.” ThoughtCo, ThoughtCo, 3 July 2019, www.thoughtco.com/chromium-element-facts-606519.
https://www.lenntech.com/periodic/elements/cr.htm
Pt. 2: Questions
What would I do differently next time?
I would have done it sooner, it just kept slipping my mind (which is no excuse). When i finally sat down with nothing to do and remembered this project, i dove right in. I had lots of difficulty finding Mr. Robinson’s edublog so i also couldn’t find the criteria. I searched for almost an hour and had no luck. I just did what my friends told me and i hope it’s what you were asking for.
The questions I researched:
What is chromium?
The purposes of chromium?
chromium atomic number?
Who discovered chromium?
When was chromium discovered?
Resources I used:
I mostly just used google search and looked for reliable websites.