Nickel by Idialu Abhulimen

1. Nickel byIdialu Abhulimen

2. Characteristics of Nickel • It is one of only four elements that are magnetic at or near room temperature. • Nickel discovered by Cronstedt in 1751 has: • Atomic number of 28 • Atomic mass of 58.71 • Number of proton • Number of electrons • Density of 8.9g

3. Characteristics of Nickel • It belongs to group 10 (VIIIB) • Nickel is classified as a transition metal. • Transition metals are elements between Groups 2 (metals) and 13 (non-metals) in the periodic table. • The periodic table is a chart that shows how chemical elements are related to one another. • Nickel is closely related to iron, cobalt, copper, and zinc.

4. Characteristics of Nickel Physical: • Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. • It is hard, • Malleable, ductile, somewhat ferromagnetic. • Belong to the iron-cobalt group of metals and is chiefly valuable for the alloys it forms.

5. Characteristics of Nickel Chemical: • Nickel is a relatively unreactive element. • At room temperature, it does not combine with oxygen or water or dissolve in most acids. • At higher temperatures, it becomes more active, • e.g. nickel burns in oxygen to form nickel oxide(NiO). • It also reacts with steam to give nickel oxide and hydrogen gas. • Fair conductor of heat and electricity. • It is explosive in air

6. Important uses of Nickel • It is extensively used for making stainless steel. • In armor plates and burglar-proof vaults. • The metal is corrosion-resistant hence can be useful in alloys, as a plating, in the manufacture of coins, magnets and common household utensils,

7. Important uses of Nickel • Nickel is also very popular in the manufacture of batteries. • Nickel is also used in electroplating, a process by which a thin layer of one metal is laid down on top of a second metal. • It is also used to make heavy machinery and large containers in which large-scale chemical reactions are carried out.

8. Important uses of Nickel • It is also used for plating and as a green tint in glass. • Nickel is pre-eminently an alloy metal, and its chief use is in the nickel steels and nickel cast irons, of which there are many varieties.

9. Description of Nickel characteristics • It was voted allergen of the year in 2008 by the American Contact Dermatitis Society. • In nature it occurs combined with sulfur in millerite. • Millerite means a nickel sulfide mineral usually occurring in long hairlike crystals and sometimes used as a nickel ore. • Nickel is an important cause of contact allergy, partly due to its use in jewelery intended for pierced ears. • Nickel is a relatively unreactive element. • Mallable, meaning it is capable of being hammered into thin sheets.

10. Description of Nickel characteristics • Ductile meaning it is capable of being drawn into thin wires. • At room temperature, it does not combine with oxygen or water or dissolve in most • At higher temperatures, it becomes more active. • For example, nickel burns in oxygen to form nickel oxide (NiO): • It also reacts with steam to give nickel oxide and hydrogen gas: