Cobalt is a hard, lustrous, silver-gray metal. Cobalt is mostly used in lithium-ion batteries, and also in the manufacture of magnetic, wear-resistant and high-strength alloys. In 2016, 116,000 tonnes of cobalt to be used. The main ores that cobalt space cobaltite, erythrite, glaucodot and also skutterudite, however most cobalt is derived by reducing the cobalt spin-offs of nickel and copper mining and smelting.
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Protons and also Neutrons in Cobalt
The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and also is provided the symbol N. Neutron number plus atomic number equals atom mass number: N+Z=A. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z.
For secure elements, over there is generally a variety of steady isotopes. Isotopes are nuclides that have the very same atomic number and also are as such the very same element, however differ in the variety of neutrons. Mass number of typical isotopes that Cobalt are 59.
Main isotopes of Cobalt
59Co is the only stable cobalt isotope and the only isotope that exists naturally on Earth. Twenty-two radioisotopes have been characterized: the many stable, 60Co, has a half-life of 5.2714 years;
Cobalt-59 is created of 27 protons, 32 neutrons, and also 27 electrons.
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Cobalt-60 is written of 27 protons, 33 neutrons, and also 27 electrons. Cobalt-60 (60Co or Co-60) is a radioactive metal that is offered in radiotherapy. That produces 2 gamma rays through energies the 1.17 MeV and 1.33 MeV. It is helpful as a gamma ray resource because it deserve to be developed in predictable quantities, and for the high radioactive activity simply by exposing herbal cobalt to neutrons in a reactor because that a given time.