Ni meaning in Chemistry ?

Answer:

What is Nickel mean?

Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile. Pure nickel, powdered to maximize the reactive surface area, shows a significant chemical activity, but larger pieces are slow to react with air under standard conditions because an oxide layer forms on the surface and prevents further corrosion (passivation). Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.

Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores.

Use of nickel (as a natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classified as a chemical element in 1751 by Axel Fredrik Cronstedt, who initially mistook the ore for a copper mineral, in the cobalt mines of Los, Hälsingland, Sweden. The element's name comes from a mischievous sprite of German miner mythology, Nickel (similar to Old Nick), who personified the fact that copper-nickel ores resisted refinement into copper. An economically important source of nickel is the iron ore limonite, which often contains 1–2% nickel. Nickel's other important ore minerals include pentlandite and a mixture of Ni-rich natural silicates known as garnierite. Major production sites include the Sudbury region in Canada (which is thought to be of meteoric origin), New Caledonia in the Pacific, and Norilsk in Russia.

Nickel is slowly oxidized by air at room temperature and is considered corrosion-resistant. Historically, it has been used for plating iron and brass, coating chemistry equipment, and manufacturing certain alloys that retain a high silvery polish, such as German silver. About 9% of world nickel production is still used for corrosion-resistant nickel plating. Nickel-plated objects sometimes provoke nickel allergy. Nickel has been widely used in coins, though its rising price has led to some replacement with cheaper metals in recent years.

Nickel is one of four elements (the others are iron, cobalt, and gadolinium) that are ferromagnetic at approximately room temperature. Alnico permanent magnets based partly on nickel are of intermediate strength between iron-based permanent magnets and rare-earth magnets. The metal is valuable in modern times chiefly in alloys; about 68% of world production is used in stainless steel. A further 10% is used for nickel-based and copper-based alloys, 7% for alloy steels, 3% in foundries, 9% in plating and 4% in other applications, including the fast-growing battery sector, including those in electric vehicles (EVs). As a compound, nickel has a number of niche chemical manufacturing uses, such as a catalyst for hydrogenation, cathodes for batteries, pigments and metal surface treatments. Nickel is an essential nutrient for some microorganisms and plants that have enzymes with nickel as an active site.

reference

Full Form	Category
Non-Impact	Academic & Science
Non-Insulated	Academic & Science
NERS (Nuclear Engineering and Radiological Sciences) Internal	Academic & Science
Needs Improvement	Academic & Science
Node Identification	Academic & Science
Node Identifier	Academic & Science
Node Initialization	Academic & Science
No Inhibition	Academic & Science
Natural Intelligence	Academic & Science
Nisource, Inc.	Business
Not Indicated	Business
Next Iteration	Business
Not Included	Business
National Insurance	Business
Net Import	Business
Victory Nickel, Inc.	Business
Nickel	Chemistry
Nematic Isotropic	Chemistry
Niel I	Community
Network Interface	Computer and Networking
National ISDN	Computer and Networking
Not Initialized	Computer Assembly Language
No Interface	Computer Hardware
Non-interlaced	Computer Hardware
Nord Invasion	Computer Technology
Non Indexed	Computing
Next Intel	Computing
Nitrogen Injection	Earth Science
No Interleaving	Electronics
Non-inductive	Electronics
Non Inscrits	General
No Idea	General
Natural Inform	General
Not Illustrated	General
No Index	General
No Information	General
NI is	General
Normal Incidence	General
Native Image	General
Nutritional Info	General
Net Income	General
Named Insured	General
Natural Interaction	General
Non Induced	General
National Instructor	General
Non Infected	General
Nebula Interface	General
Ng In	General
Not Interesting	General
Nerdy Individual	General
New Imperium	General
National Income	Governmental
North Island	Governmental
No Issue	Governmental
New Issue	Governmental
Non-Informative	Governmental
NAE, Inc.	Governmental
Non-Indian	Governmental
Notoriety Index	Governmental
Native Indian	Governmental
Not Important	Governmental
Not Identical	Governmental
NAYDONGRI	Indian Railway Station
National Instruments	Information Technology
Novus Imperium	International
Not Interested	Jobs
Number of Inhomogeneities	Maths
Number of Intervals	Maths
Non-inversed	Maths
Negative Infimum	Maths
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Neuraminidase Inhibition	Medical
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neuroimaging	Medical
neurointermediate	Medical
Neurologic Impairment	Medical
Neurologic Improvement	Medical
Neurologically Impaired	Medical
Neurologically Intact	Medical
Neutralization Index	Medical
nicotine	Medical
nifedipine	Medical
nimesulide	Medical
Nitrogen Index	Medical
Nitrogen Intake	Medical
Noise Index	Medical
Non-Invasive	Medical
nonischemic	Medical
Nosocomial Infection	Medical
Not Isolated	Medical
Nuclear Inclusion	Medical
Nuclear Index	Medical
Nucleus Intercalatus	Medical
Nucleus Interpositus	Medical
Nursing Informatics	Medical
Nutritional Index	Medical
Introverted iNtuition	Medical
Near Inclusion	Medical
New Instructions	Medical
Not Identified	Medical
Name Identity	Medical
Narcotrend Index	Medical
National Indicator	Medical
Natural Immunity	Medical
necroinflammatory	Medical
Necrosis Index	Medical
Negative Ion	Medical
neointima	Medical
Neostriatum Intermedium	Medical
Not In	Messaging
National Identification (number)	Military and Defence
Noted Item	Military and Defence
Native Infantry	Military and Defence
New Information	Military and Defence
Non Inferiority	Military and Defence
Naval Interdiction	Military and Defence
Node Interface	Networking
Not-inside	Networking
Northern Ireland	Regional