Cobalt+-+Mendelev's+Square+-+Basic+Facts

Cobalt - Facts

 * The atomic number is 27, therefore a cobalt atom has 27 protons.
 * Judging by the atomic number and the atomic mass, the cobalt atom has 32 neutrons in the nucleus.
 * The element is a //transition metal//, and is solid at room temperature.
 * Int its pure form, cobalt is a hard, lustrous, brittle, silver-grey metal.
 * Pure cobalt is never found in nature, but is found in compounds with other elements.
 * Vitamin B12 contains some cobalt that mammals need.
 * Cobalt-60 is a radioactive isotope that is an important cancer treatment agent.
 * It is mostly found in mines in the Democratic Republic of the Congo, Canada, Zambia, Russia, Brazil, and Cuba according to the British Geological Survey.

Click the link below to see the Mendelev's square I made with Microsoft Paint. [| cobalt.bmp]