Question

what is cobalt. pls answer it​

Answer 1

Cobalt is a hard, lustrous, silver-gray metal. It is a chemical element (symbol Co) with an atomic number of 27.

It is used in lithium-ion batteries, and in the manufacture of magnetic, wear-resistant and high-strength alloys.

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Answer 2

It is similar to iron and nickel in its physical properties. Cobalt is found in plants and animals, air, water, soil, rocks. It may also enter into another environment through wind-blown dust or by rainwater washing down cobalt containing soil and rock.