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Important facts about metals

Most elements are metals, rather than non-metals. The table summarises some differences in their properties. Notice that metals and non-metals have opposite properties to each other. It is usually easy to tell metals and non-metals apart, but some tests are more reliable than others. For example, using a magnet is not a good test to see if an element is a metal.


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Important facts about metals

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10 Facts to Know About Metals


Some chemical elements are called metals. They are the majority of elements in the periodic table. These elements usually have the following properties:.

Most metals are solid at room temperature, but this does not have to be the case. Mercury is liquid. Alloys are mixtures, where at least one part of the mixture is a metal. Examples of metals are aluminium , copper , iron , tin , gold , lead , silver , titanium , uranium , and zinc. Well-known alloys include bronze and steel. The study of metals is called metallurgy. Most metals are hard, shiny, they feel heavy and they melt only when they are heated at very high temperatures. Lumps of metal will make a bell-like sound when they are hit with something heavy they are sonorous.

Heat and electricity can easily pass through a metal it is conductive. A lump of metal can be beaten into a thin sheet it is malleable or can be pulled into thin wires it is ductile. Metal is hard to pull apart it has a high tensile strength or smash it has a high compressive strength. If you push on a long, thin piece of metal, it will bend, not break it is elastic.

Not all metals have these properties. Lead , for instance, is very soft, and heat and electricity do not pass through iron as well as they do through copper. Metals are very useful to people. They are used to make tools because they can be strong and easy to shape. Iron and steel have been used to make bridges , buildings , or ships.

Some metals are used to make items like coins because they are hard and will not wear away quickly. For example copper which is shiny and red in color , aluminium which is shiny and white , gold which is yellow and shiny , and silver and nickel also white and shiny. Some metals, like steel , can be made sharp and stay sharp, so they can be used to make knives , axes or razors. Rare metals with high value, like gold , silver and platinum are often used to make jewellery.

Metals are also used to make fasteners and screws. Pots used for cooking can be made from copper , aluminium , steel or iron. Lead is very heavy and dense and can be used as ballast in boats to stop them from turning over, or to protect people from ionizing radiation. Many things that are made of metals may, in fact, be made of mixtures of at least one metal with either other metals, or with non-metals. These mixtures are called alloys. Some common alloys are:.

People first began making things from metal over years ago, when they discovered how to get copper from its ore. They then learned how to make a harder alloy, bronze, by adding tin to the copper. About years ago, they discovered iron. By adding small amounts of carbon to iron, they found that they could make a particularly useful alloy — steel. In chemistry , metal is a word for a group of chemical elements that have certain properties. It is easy for the atoms of a metal to lose an electron and become positive ions , or cations.

In this way, metals are not like the other two kinds of elements - the nonmetals and the metalloids. On the periodic table , we can draw a zigzag line from the element boron symbol B to the element polonium symbol Po. The elements that this line passes through are the metalloids. The elements that are above and to the right of this line are the nonmetals. The rest of the elements are the metals. Most of the properties of metals are due to the fact that the atoms in the metal do not hold onto their electrons very tightly.

Each atom is separated from the others by a thin layer of valence electrons. However, some metals are different. An example is the metal sodium.

It is soft , melts at a low temperature , and is so light , it floats on water. People should not try this though, because another property of sodium is that it explodes when it touches water. Most metals are chemically stable , and do not react easily.

Some of the metals do react. These are the alkali metals like sodium symbol Na and the alkaline earth metals like calcium symbol Ca. When metals do react, they often react with oxygen. The oxides of metals are basic. The oxides of nonmetals are acidic.

Nonetheless most elements on the periodic table are metals. Compounds , which have metal atoms combined with other atoms to make molecules , are probably the most common substances on Earth. For example, common salt is a compound of sodium. The use of metals is said to be the thing that makes people different from animals. Before they used metals, people made tools from stones , wood , and animal bones. This is now called the Stone Age.

No-one knows when the first metal was found and used. It was probably what is called native copper , which is sometimes found in large lumps on the ground. People learned to make this into copper tools and other things, although, for a metal, it is quite soft. When it was melted over fire , people learned how to make an alloy called bronze , which is much harder and stronger than copper.

People made knives and weapons from bronze. This time in human history , after about BC is often called the Bronze Age , that is, the time of bronze tools and weapons. Around the year BC some people learned to make iron tools and weapons.

These were even harder and stronger than bronze and this was an advantage in war. The time of iron tools and weapons is now called the Iron Age. Metals have been very important in human history and civilization. Iron and steel were important in the making of machines.

Gold and silver were used as money in order to allow people to trade , that is, exchange goods and services over long distances. Since these metals were money for a long time, many people thought that finding metals was a way to get rich. There have been many times when gold was found and people moved quickly in large numbers to those places for example, Central and South America after the year , and many places after the year the United States of America , Canada , Australia , New Zealand and South Africa.

These are often called Gold Rushes. In astronomy , a metal is any element other than hydrogen or helium. This is because these two elements and sometimes lithium are the only ones that form outside stars. In the sky , a telescope can see the signs of metals and then the astronomer knows that there are stars.

Metal facts for kids Kids Encyclopedia Facts. Hot metal work from a blacksmith. All content from Kiddle encyclopedia articles including the article images and facts can be freely used under Attribution-ShareAlike license, unless stated otherwise. Cite this article:. This page was last modified on 16 July , at Suggest an edit. Alkali metals.

Alkaline earth metals. Transition metals. Other nonmetals. Noble gases.


Important facts about metals

Metals have been around for centuries, valued for their strength, durability, versatility, and electrical conductivity. Metal is used in industrial and architectural fabrication such as using sheet metal and other forms in building construction, bridges, tools, machinery, electronics, plumbing, HVAC, automobiles, aircraft, military equipment, and more. Close Menu. Industrial Architectural. Industry Related custom metal fabrication , metal fabrication , sheet metal , sheet metal utah June 30, Previous Post. Next Post.

Important facts about metals. The study of metals is metallurgy. Most common metal found in the earth's crust is aluminum.

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Metals are typically malleable they can be hammered into thin sheets or ductile can be drawn into wires. A metal may be a chemical element such as iron ; an alloy such as stainless steel ; or a molecular compound such as polymeric sulfur nitride. In physics, a metal is generally regarded as any substance capable of conducting electricity at a temperature of absolute zero. For example, the nonmetal iodine gradually becomes a metal at a pressure of between 40 and thousand times atmospheric pressure. Equally, some materials regarded as metals can become nonmetals. Sodium , for example, becomes a nonmetal at pressure of just under two million times atmospheric pressure. In chemistry, two elements that would otherwise qualify in physics as brittle metals— arsenic and antimony —are commonly instead recognised as metalloids due to their chemistry predominantly non-metallic for arsenic, and balanced between metallicity and nonmetallicity for antimony. Around 95 of the elements in the periodic table are metals or are likely to be such. The number is inexact as the boundaries between metals, nonmetals , and metalloids fluctuate slightly due to a lack of universally accepted definitions of the categories involved.

Metal facts for kids

important facts about metals

The Romans gave copper its name. The Egyptians used the ankh symbol to denote copper in their system of hieroglyphs. It also represented eternal life. Archaeological finds suggest copper tubes were first used by Ancient Egyptians to carry water in around BC.

Although gold tends to get the most love when it comes to precious metals, silver has been an important part of our history from medicine to photography to religious rites! Silver is super shiny!

10 Amazing Facts You Didn't Know About Metal


Here is some quite unnecessary knowledge about materials science. Best is to stop reading here. Or is it probably not useless? Annual metallurgical production: an incredible visualization. The Cobalt isotope is used to create gamma rays which are used to treat cancer and to sterilize medical instruments. The general abundance of elements in the earth's crust is irrelevant for efficient and sustainable mining, but it is the local agglomeration of elements in confined regions that matters.

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Here at Claddagh Design, we create our pieces of Celtic jewelry in a range of precious metals. Sterling silver admittedly holds a special place in our hearts. Silver is a versatile and valuable precious metal that has a variety of uses throughout the world, from medicine to photography and everything in between. Silver objects have been found dating as far back as BC. Historians believe it was first discovered around a thousand years before that.

Tungsten has the highest tensile strength of all natural metals in the world. Tensile strength is a measure of how much force it takes to pull.

Interesting facts about metals

Ever wondered which metal is the most dangerous? The most antibacterial or the rarest in the world? Austen Knapman have put together a list of the most mind-blowing facts we can think of. The most dangerous metal in the world due to its high radioactivity.

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There is evidence that gold was used in ancient China for treating diseases ranging from bone disorders to skin conditions, measles, and smallpox. The Ayurvedic system of medicine from India dates from about BCE and includes such metals as copper, gold, lead, and mercury. One of the oldest written records of the use of metals in medical treatment comes from the Egyptians. The Ebers papyrus, written in about BCE and itself a compilation from earlier sources , had treatments such as copper for headaches and the topical application of iron-rich meat for wounds.

From soda cans and ladders to electrical wiring and airplane fuselages, countless products are made of aluminum.

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Do you have a metal project that requires finishing? Enquire about our metal finishing services. What is the strongest natural metal in the world? Tungsten has the highest tensile strength of all natural metals in the world. Tensile strength is a measure of how much force it takes to pull something apart. Metals are often measured by compressive strength too, which is the force measured to compress the object.

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Some chemical elements are called metals. They are the majority of elements in the periodic table. These elements usually have the following properties:. Most metals are solid at room temperature, but this does not have to be the case.




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