Magnetism is an enthralling phenomenon to observe. When you see a magnet attracting magnetic materials, you might be curious as to why. What distinguishes a magnetic from a non-magnetic substance? Is it true that all metals are magnetic?
So, what’s this? The number of non-magnetic metals is greater than the number of magnetic metals.
How many non-magnetic metals do you think there are? We’re going to talk about non-magnetic metals in this article. Magnetism comes in a variety of strengths, ranging from very weak to extremely powerful.
When placed in front of a permanent magnet, the metals listed in this article are magnetic in some way but do not exhibit magnetism. What could be more exciting than that? Let’s have a look:
Magnetism’s Different Types
- Diamagnetism: Diamagnetism is a type of magnetism that
The atoms in diamagnetic materials have no magnetic moment. The magnetic susceptibility, which runs from -10-6 to -10-5, is low and negative.
The degree to which a material can be magnetised by an external magnetic field is known as magnetic susceptibility.
A diamagnetic material is repelled by a magnetic field but only weakly. Gold, copper, and mercury, for example, are diamagnetic materials.
Paramagnetism is a type of magnetism that occurs when a magnetic field is
Paramagnetism occurs when materials are weakly attracted to a powerful magnet. Magnetic moments are arbitrarily arranged in paramagnetic materials’ atoms.
It has a low and negative magnetic susceptibility, ranging from +10-5 to +10-3. Paramagnetism is a property of aluminium, which is one of the metals that exhibits it.
- Ferromagnetism: Ferromagnetism is a type of magnetism that
The strongest magnetism is seen in ferromagnetic materials. Permanent magnets attract them powerfully, and they can even be magnetised. It’s because their atoms have magnetic moments that are parallel aligned and have a high magnetic sensitivity.
Iron, cobalt, and nickel are transition metals that show ferromagnetism.
- Magnetism (ferromagnetism):
Ferrimagnetism is a property of atoms with a mix of parallelly and anti-parallelly aligned magnetic moments. These materials are attracted to magnets and become permanent magnets. Magnetic susceptibility is high in ferrimagnetism.
Antiferromagnetism is a type of antiferromagnetism.
Antiferromagnetic materials are those that do not exhibit any magnetic characteristics and are thus non-magnetic. Chromium is a transition metal that, like many of its derivatives, shows antiferromagnetism.
Anti-parallel magnetic moments exist in these materials.
Pure neodymium and manganese oxide are two other antiferromagnetic materials.
Metals that aren’t magnetic are known as nonmagnetic metals.
Copper is the first element.
Humans have been using copper for hundreds of years. Due to its diamagnetic nature, this metal has a low and negative magnetic susceptibility. As a result, it is no longer magnetic.
It has evolved into a necessary component of industrial manufacturing. It is important in industries because of its strong thermal conductivity, electrical conductivity, ductility, and corrosion resistance.
All of these qualities of copper make it appropriate for the manufacture of heat exchangers and heating vessels. It’s also utilised as an electrical conductor in wires and motors, as well as for plumbing fittings and other applications.
The gold standard:
Gold is a diamagnetically active metal. It is non-magnetic due to its display of diamagnetism. It is a precious metal that is widely used in the jewellery industry nowadays.
The metal has flexibility, corrosion resistance, and the ability to withstand a variety of chemical reactions. It is the most malleable metal, according to legend.
In addition to infrared shielding, gold is employed in computers and even for tooth replacement.
Silver is the third element.
Another precious metal that has been used for hundreds of years is silver. Because of its diamagnetism, this metal is non-magnetic. The atoms of the element have no magnetic moment due to the presence of diamagnetism.
The highest electrical conductivity, thermal conductivity, and reflectivity of any metal are all attributes of silver. When heated, it becomes a highly soft and pliable metal. It’s also noted for its strong resistance to corrosion.
It is now commonly utilised in the manufacture of jewellery and coinage. It’s also used in the production of solar panels and water filters.
Aluminum is a metal that is used in a variety of
Aluminum is a paramagnetically active metal. Because of its poor magnetic susceptibility and randomly oriented magnetic moments, it is nonmagnetic. It is slightly attracted to a magnetic field due to its paramagnetism.
It has strong corrosion resistance, is a good conductor of heat and electricity, and is ductile and malleable.
Aluminum is now used in a wide range of applications. It’s used in aerospace to make wings and other parts of planes because of its light weight and low cost. It’s also used in the production of bicycle frames, saucepans, and beverage cans.
Titanium is the fifth element in the periodic table.
In 1791, titanium was found. The metal’s paramagnetism is the reason it is non-magnetic. As previously stated, paramagnetic materials are attracted to magnetic fields only weakly.
This metal offers the best corrosion resistance and the highest strength-to-density ratio of any metal. Without being alloyed, it can be as strong as steel.
It’s utilised in jewellery, surgical instruments, prosthetic devices, and aircraft, spacecraft, missiles, and ship parts.
Platinum (number 6):
Platinum is a rare element that can be found in the Earth’s crust. It is highly prized and sought after. Because of its paramagnetic nature, it is a non-magnetic metal. By making alloys with other metals, it can be produced paramagnetic.
Pacemakers, catalytic converters, and jewellery all use this transition metal. It’s highly soft and pliable, so it can be moulded into any shape.
It can stretch into wires due to its ductility. It is resistant to oxidation and is unaffected by ordinary acids since it is unreactive.
Lead is a diamagnetic metal that has a weak magnetic field repellent property. It has such a low magnetic susceptibility that no response can be seen with the naked eye.
It’s a bluish-white metal with a lustrous finish. It’s necessary for the manufacture of lead-acid batteries. Lead is occasionally used as an electrode in the electrolysis process.
Lead is toxic to our bodies and internal organs. It can potentially impair the development of a child’s brain and other organs.
Bismuth is the eighth element in the periodic table.
Bismuth is a post-transition metal that is pentavalent. Because of its diamagnetic nature, it is non-magnetic. Bismuth atoms have a negative magnetic susceptibility and have no magnetic moment.
When placed in a magnetic field, it is considered to have low electrical conductivity and great resistance to electricity.
Hard, glossy, brittle, and coarsely crystalline are all characteristics of this metal. All of these qualities are used in cosmetics such as lipsticks, nail lacquer, and gleaming pearly powders, among other things. It’s also utilised to make bullets instead of lead.
Magnesium (number 9):
Magnesium is an alkaline earth metal that is one of the most plentiful elements on the planet. This metal is paramagnetic, which means it is attracted to a magnetic field only weakly.
Sparklers, flares, and fireworks are all made with this metal. Magnesium is easily combustible when exposed to strong light.
One of the elements found in chlorophyll is this metal. Because chlorophyll permits plants to collect sunlight and live, life on Earth would not have been known if this metal did not exist.
Molybdenum is the tenth element on the periodic table.
Molybdenum is a paramagnetic metal, which means it is not magnetic. It’s a silvery-white metal that has one of the highest melting points of all the pure elements.
Molybdenite, wulfenite, and powellite are some of the ores that contain this metal. The United States, China, Peru, and Chile are the primary producers. It is an important vitamin in our bodies, but too much of it is detrimental to our health.
Tantalum is the eleventh element in the periodic table.
Tantalum is not magnetic, which is due to its paramagnetism. Its atoms have magnetic moments that are randomly arranged. The molar magnetic susceptibility of this substance is +154 X 10-6 cm3/mol.
It has the distinct properties of being chemically inert and stable up to a temperature of 159 degrees Celsius.
Tin has both paramagnetism and diamagnetism properties. It all depends on the type of tin you have. Gray tin has diamagnetism, whereas white tin has paramagnetism.
Tin is an important element that may be found in tin cans on a regular basis. Tin is used for coating iron to protect it against corrosion, in addition to making tin cans.
Lithium (number 13):
Lithium is a metal that belongs to the alkali family. It has a paramagnetistic character. With a molar magnetic susceptibility of +14.2 X 10-6cm3/mol, it is a soft, whitish, and glossy metal.
In metallurgy, lithium is important because it aids in the removal of impurities from metals.
Sodium is another metal having a paramagnetism property. It’s a soft metal with a magnetic susceptibility of +16 X 10-6 cm3/mol.
It’s used in nuclear power plants and as reagents in the chemical industry.
Because of its paramagnetism and molar magnetic susceptibility of +20.8 X 10-6 cm3/mol, potassium is nonmagnetic.
It has a low melting point and is a soft metal. There isn’t much of a market for it.
Rubidium has a molar magnetic susceptibility of +17X 10-6cm3/mol, making it paramagnetic. When exposed to air, the metal ignites instantly and interacts severely with water.
Vacuum tubes, photocells, and vapour turbines all use rubidium.
Cesium is a low-magnetic-susceptibility paramagnetic metal. It is utilised in atomic clocks because it is extremely accurate in keeping time. Sodium is one of the metals that converts into liquid at normal temperature, along with mercury, gallium, and francium.
Francium, number 18:
Francium is a radioactive metal that is non-magnetic and shows paramagnetism. It has no commercial applications because it is a volatile and rare element.
Manganese, no. 19:
Manganese is the sixth most common element on the planet. With a molar magnetic susceptibility of +529 X 10-6cm3/mol, this metal is also paramagnetic. Manganese is a critical component in the production of steel.
We learnt about numerous types of magnetism in this post, as well as the logic behind some metals’ non-magnetic properties. Some metals are drawn to magnets, while others are not.
All alkali metals (lithium, sodium, potassium, rubidium, cesium, and francium) are non-magnetic, as well.