Element Cobalt (Co), Group 9, Atomic Number 27, d-block, Mass 58.933. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Cobalt is a chemical element of the periodic table with chemical symbol Co and atomic number 27 with an atomic weight of 58.9332 u and is classed as transition metal and is part of group 9 (cobalt group). Cobalt is solid at room temperature.

Cobalt has twenty-seven protons and thirty-two neutrons in its nucleus, and twenty-seven electrons in four shells. It is located in group nine, period four and block d of the periodic table. Light grey transition element. Some meteorites contain small amounts of metallic cobalt. Generally alloyed for use. Mammals require small amounts of cobalt ...

2020年11月21日 · Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron.

2024年9月1日 · Cobalt in Periodic table. Cobalt element is in group 9 and period 4 of the Periodic table. Cobalt is the d-block element and it belongs to transition metals group.

Cobalt atoms have 27 electrons and the shell structure is 2.8.15.2. The ground state electronic configuration of neutral cobalt is [Ar]. 3d7. 4s2 and the term symbol of cobalt is 4F9/2. Cobalt is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron (ferromagnetic). Cobalt is present in meteorites.

Refined or polished cobalt is a silvery white metal and have a faint bluish tinge. Its physical properties resemble iron and nickel. Cobalt is a ferromagnetic (strongest magnet), up to 1121 0 C. Its specific gravity is 8.9. Pure cobalt is obtained through smelting process, which is hard and lustrous and release vapors of arsenic.

Cobalt - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.

Sample compounds that contain Cobalt are CoCl2, Co2, Co (NO3)2, [Co (NH3)5Cl]Cl2, CaCo3, Co3N2. Cobalt: element properties, electonic configuration, isotopes, compounds, reactions and pictures.

2023年6月17日 · Cobalt element (Co) is in group 9 and period 4 of a periodic table. Cobalt is in the d-block and it is classified as a transition element on the periodic table.