Items tagged “chemistry”
2 results found
Article
Cobalt
Cobalt (chemical symbol Co) is an essential trace element. Its most important function in humans is as the active metal atomic center of vitamin B12.
Chemistry
Basic chemistry
Cobalt is a shiny grey-silvery transition metal with an atomic number 27 and an atomic weight of 58.93 Daltons (Da). ...
Article
Chemical element
There are now 118 confirmed chemical elements in the periodic table. A chemical element describes atoms which share the same specific number of protons in their nucleus (atomic number or Z). For example, all atoms of carbon, regardless of their number of electrons (determines ionization) or neut...