cobalt more information
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Answer:
Cobalt is a chemical element with the symbol (Co) and atomic number (27.)........ Like the nickel, cobalt is found in the Earth's crust but only in the chemicall combined form , save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. ,and one of the rare metal of the nature.......
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_______ "By -Rohit sharma"......
Answer:
COBALT
=Its symbol is Co.
=Its atomic number is 27.
=Its atomic mass number is 58.9.
=It is present in 9th group.
=It is present in the 4th period.
=It is present in the d- block(d means diffuse & it has 40 elements & it has only metallic character elements & it has 3-12 groups & it is also known as bridge element).
=It is a transition metal.