COBALT Mass: 58.933200,

THE SYMBOL: Co Mass: 58.933200 #27

DISCOVER: Georg Brandt discovered it in 1735

MIXTURES Cobalt is mostly made up of a mixture of metals.

THE USE OF COBALT 30 milli of the mass of Earth's crust. cobalt is in chemical compounds with arsenic, oxygen, Sulfur. Cobalt is also found in nickel, iron, and copper.

<<< Atomic Structure Isotope Half Life Co- 5677.3 days Co-57271.8 days Co-5870.9 days Co-58m9.1 hours Co-59 Stable Co-605.3 years Co-60m 10.5 minutes Co-61 1.7 hours +2/+3 ions <<< Atomic Structure

FUN FACTS Cobalt is found in most metals, like for example aluminum. Vitamin B 12 contains cobalt. Vitamin B 12 is needed to help nerve cells

BIBLIOGRAPHY "Cobalt." World Book. Student ed. 2009. World Book. Web. 24 Nov. 2009. "Periodic Table of the Elements." Prairie Hills Middle School Student Handbook 2009-2010 Aug. 2009: 109. Print. Unknown. Cobalt. N.d. na, na. Ask.com. Web. 24 Nov. 2009. MLA formatting by BibMe.org.