are cobalt and nickel magnetic?
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The element Nickel (Ni) is one of the few ferromagnetic metals. Ferromagnetic means they are attracted to magnets and can be magnetized themselves. Most metals aren't magnetic with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
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Magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron, nickel, cobalt and their alloys, and ferrimagnetic materials like ferrite. This includes the formation of permanent magnets and the attraction of ferromagnetic materials to a magnetic field.
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Most other metals, for example aluminium, copper and gold, are NOT magnetic. Two metals that aren't magnetic are gold and silver. They are often used for making jewellery, including crowns for instance.
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NO has an odd number of electrons and, therefore, must be paramagnetic. e. CO is diamagnetic because all of its electrons are paired.
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['Iron.', 'Nickel.', 'Cobalt.', 'Some alloys of rare earth metals.']
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Characteristics: Nickel is a hard, silvery-white metal, which is malleable and ductile. The metal can take on a high polish and it resists tarnishing in air. Nickel is ferromagnetic and is a fair conductor of heat and electricity.
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Iron and nickel are industrial metals. Both are white metals, and both are magnetic, so they cannot be distinguished with a simple magnet test. Iron is much more susceptible to corrosion, so it is important to identify it. Nickel is often found in alloys, or as a plating layer.
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Since rare earth magnets contain iron and cobalt in the state not containing oxygen, their magnetization is large. In addition, magnetization of rare earth magnets has a strong force (coercive force) aligning the magnetism in one direction, so they are much stronger magnets than ferrite magnets.
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A common nichrome alloy is 80% nickel and 20% chromium, by mass, but there are many other combinations of metals for various applications. Nichrome is consistently silvery-grey in colour, is corrosion-resistant, and has a high melting point of about 1,400 °C (2,550 °F).
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The Magnet Test Most precious metals-like gold and copper-are nonmagnetic, and silver is no exception. Grab some magnets and see if they are drawn to your object. "Silver is not noticeably magnetic, and exhibits only weak magnetic effects unlike iron, nickel, cobalt, and the like," says Martin.
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Since then only three elements on the periodic table have been found to be ferromagnetic at room temperature—iron (Fe), cobalt (Co), and nickel (Ni).
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They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.
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Assuming 10nm thickness to make the math easier, This gives us about 6.88 * 1013 nm3 of magnetic layer material for one gigabyte. Given the density of cobalt, this means that we can approximate the weight at 0.612471 micrograms.
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Mixed nickel iron oxide nanomaterials have great potential for use in fields as wide-ranging as optics, water oxidation catalysis, and biomedical applications. So it seems that nickel and iron oxide are the same thing.
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Antiferromagnetic materials occur commonly among transition metal compounds, especially oxides. Examples include hematite, metals such as chromium, alloys such as iron manganese (FeMn), and oxides such as nickel oxide (NiO).
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Due to the fact that these iron electrons and their magnetic fields can be easily aligned with external magnetic field, it is easy for neodymium magnets to attract to them. ... Stainless steel alloys on the other hand do not have this property and cannot be attracted to a magnet.
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The iron content in the steel core is what makes them magnetic. Since January 2012, the 'Silver' 5p and 10p coins have also been made from a plated steel, in turn making them magnetic. While they changed more recently than the 'coppers', you will actually find that a higher percentage of 5p and 10p coins are magnetic.