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Nickel Element in Periodic Table | Atomic Number Atomic Mass
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The chemical element Nickel is a silvery-white lustrous metal with a slight golden tinge. It is represented by the symbol Ni and atomic number is 28. Ni belongs to the d-block, and the member of the group 10 and period 4 in the periodic table. Ni occurs rarely free in nature. Instead it is found in ores such as pentlandite, pyrrhotite, and garnierite, millerite and niccolite. Ni contains 23 isotopes whose half-lives are known, with mass numbers 52 to 76. Naturally occurring nickel is a mixture of five stable isotopes; 58Ni, 60Ni, 61Ni, 62Ni and 64Ni, with 58Ni being the most abundant.
Uses Of Nickel Element:
- Nickel is mainly used in making alloys such as stainless steel.
- Ni- steel alloy is used to make armor plate, vaults and machine parts.
- Nickel-copper alloy is used to make pipes that are used in desalination plants, which convert seawater into fresh water.
- It is used in making of rechargeable nickel-cadmium batteries and nickel-metal hydride batteries used in hybrid vehicles and also used in the manufacture of Alnico magnets.
- Ni also used in making of coins.
- Finely divided nickel is used as a catalyst for hydrogenating vegetable oils.
- Adding nickel to glass gives it a green colour.
Nickel Element Information:
Discovery year: 1751
Discovered by: Axel Fredrik Cronstedt
Relative atomic mass: 58.693
Electron configuration: [Ar] 3d8 4s2 or [Ar] 3d9 4s1
Other elements in the same block:
Scandium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Copper, Zinc, Yttrium, Zirconium, Niobium, Molybdenum, Technetium, Ruthenium, Rhodium, Palladium, Silver, Cadmium, Lanthanum, Hafnium, Tantalum, Tungsten, Rhenium, Osmium, Iridium, Platinum, Gold, Mercury, Actinium, Rutherfordium, Dubnium, Seaborgium, Bohrium, Hassium, Meitnerium, Darmstadtium, Roentgenium and Copernicium are the elements in the same block.
Period: period 4
Other elements in the same period:
Potassium, Calcium, Scandium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Copper, Zinc, Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton.
Group: group 10
Other elements in the same group:
Palladium, Platinum, Darmstadtium are the same group elements.
Other elements in the same orbital:
Scandium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Copper and Zinc are the elements in the same orbital.
Key isotopes: 58Ni
Melting point: 1455°C, 2651°F, 1728 K
Boiling point:2913°C, 5275°F, 3186 K
Element category: transition metal
Density (g cm−3): 8.90
CAS number: 7440-02-0
Color: lustrous, metallic, and silver with a gold tinge
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