collect few samples of metals and fill the following tables
Object / Properities / Its metals or non-metals
Any 10
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Answers
Answer:
The materials present around us are grouped widely into metals and non-metals. But can you say by their properties which material is metal and which is a non-metal? Is wood a metal? or Iron a non-metal? Let us learn this topic in detail.
Metals
Metals are materials holding or possessing the characteristics of being shiny, hard, fusible, malleable, ductile, etc. Few examples of metals (materials) are – Gold, Silver, Aluminium, Copper, Iron, etc.
Browse more Topics Under Materials Metals And Non Metals
Introduction to Metals and Non-metals
Physical Properties of Metals and Non-metals
Chemical Properties and Uses of Metals and Non-metals
Physical Material Properties of Metals
The physical properties of metals are:
Luster
The property of metals which in the pure state usually shines. The shine on the metallic surface is the metallic luster. They shine in light due to the reason that the metals possess free electrons that vibrates on getting in contact with light.
Malleability
Malleability refers to the property of metals by which they can be beaten into thin sheets. One such example is silver metal beaten to make silver foil used for decorating sweets.
Ductility
Ductility refers to the properties of metals by virtue of which they can be drawn into thin wires. One example of ductility is copper and iron which can be drawn in to thin wires.
Conductivity
The metals are a good conductor of heat and electricity as they can pass through them. They are good conductors of heat and electricity. The best conductors of electricity are silver and copper, however, lead and mercury are poor conductors of electricity. They also have a high melting point except Caesium and Galium have the very low melting point.
Sonorous
On being struck hard, the metals produce a ringing sound. Due to this property, they sonorous. For example – the school bell produces a loud ringing sound when stuck with the hammer hard. Some examples are – Iron, Gold, Copper, Aluminium, Magnesium, and many more.
Solid
Except for Mercury, all the metals are solid. Mercury is in the liquid state at room temperature. The exceptional metals are Sodium ( Na), Potassium ( K ) and Mercury. The metals like Sodium ( Na) and Potassium ( K ) are easily cut with the help of a knife. Other examples of metals are iron, copper, silver, aluminum, calcium, gold etc.
material
Uses of Metals
The many uses of Metals are:
Metals are used for various purposes, from making wires and sheets. For example – Copper and aluminum wires in electrical equipment’s, especially for conduction of electricity.
Metals are also used in making automobiles, machinery, water boilers, industrial gadgets, etc.
The metals are used in making utensils and water boilers due to its property of being a good conductor of heat.
Non Metals
Non – metals are materials not holding the characteristics of metals, means they are not shiny, hard, fusible, malleable, ductile, etc. Many materials like coal and Sulphur are very soft and dull in appearance. They break down into very fine thin powdery mass on tapping with the hammer. They are neither in – sonorous and also are a very poor conductor of heat and electricity. Few examples of non – metals are carbon, oxygen, Sulphur, etc.
Explanation: