Cobalt in the Human Body

• transition metal
• atomic number: 27
• number of neutrons: 32
• 8 isotopes

• Symbol:Co
• Atomic Number:27
• Atomic Weight:58.933195
• Group:9 (cobalt family)

• Density:8.9 g/cm3
• Atomic Volume:6.7 cm2/mole
• Atomic Radius:1.25 angstroms
• Covalent Radius:126 pm
• Radioactive:No

Electrons & Oxidation

Oxidation States:+2,3

Electrons Per Shell:2 8 15 2

Electron Configuration:[Ar] 3d7 4s2

1s2 2s2 2p6 3s2 3p6 3d7 4s2

• Melting Point: 1495.0 °C
• Boiling Point: 2870.0 °C
• Heat Of Fusion: 16.19 kJ/mole
• Heat Of Vaporization: 373.3 kJ/mole

• Electronegativity: 1.9 (Pauling Scale)
• Electron Affinity: -64 kJ/mol
• 1st Ionization Energy: 761 kJ/mol
• Specific Heat Capacity: 0.421 J g−1 K−1
• Thermal Conductivity: 100.0 W·m−1·K−1

Atomic Structure

Lewis Dot

Diagram

Co

Bohr-Rutherfor

Diagram

Research

Cobalt's Role in the Body

• Cobalt is a part of Vitamin B12, which is needed for human health
• Cobalt is used to treat anaemia in pregnant women, because it stimulates red blood cell production
• Total daily intake of cobalt is a maximum of 1mg

• Concentration Range:
• Human abundance by weight : 20 ppb by weight
• Human abundance by atoms: 2 atoms relative to C= 1000000 * ppb parts-per-billion, 10–9

• Cobalt is found on the earths crust. It is also found as a result of the mining industry.

• when you breath in to much cobalt you increase the chance of having asthma and pneumonia
• to much of cobalt concentration and the results are vomiting, nausea, vision problems, heart problems and thyroid damage.

Lack of cobalt in the soil is also detrimental (e.g. in Australia sheep suffer from Coast disease caused by lack of cobalt in the soil.)

foods that contain cobolt also contain Vitamin B12.

Vitamin B2 is needed for healthy skin, healthy hair, healthy eyes, and energy

production.

Healthy foods that contain vitamin B2 include: organic beef liver, mushrooms,

organic eggs, raw almonds, organic beef, broccoli, spinach, organic chicken,

asparagus, and wild salmon

Cobalt is contained in vitamin B12. It is important in shaping and forming protein and DNA regulation.

• trace mineral in the human body ( needed in small amounts by the body)
• absence may lead to health problems
• used for the production of enzymes and vitamin B12, which is necessary to ensure that an adequate amount of red blood cells are being produced.
• Excess of Cobalt may lead to health problems (e.g. cobalt dust may cause vomiting, diarrhea, or breathing problems. On the skin, it can cause rashes and irritation.)

Cobalt

What are it's properties that allow it to be useful within your body?

Cobolt

Cobolt makes up (0.0000021%) of the human body.

The refining process of elements such as nickel, copper, silver and lead. Cobalt deposits can be found in places such as Canada. In addition, meteorites in the past that have hit earth contained cobalt.

Ion's Properties

San Francisco

Stockholm

(cc) photo by Franco Folini on Flickr

(cc) photo by Metro Centric on Flickr

(cc) photo by jimmyharris on Flickr

Budapest

(cc) photo by Metro Centric on Flickr

Bibliography

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Notes