Metals and Non Metals Properties – Supplies (Chapter 4): CBSE Class eight Science

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Metals and Non-Metals – Supplies (Chapter 4): CBSE Class eight Science.
Essential subjects as Properties of Metals and Non-Metals, Bodily properties, Chemical properties, Malleability, Ductility and Conduction of Warmth are described on this video.

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Supplies round us will be broadly grouped into metals and non-metals.

(a) Bodily Properties of Metals

Luster: Metals within the pure state typically shine. The shine on the metallic floor is named the metallic luster.
Malleability: The property of metals by which they are often overwhelmed into skinny sheets is called malleability.
For instance, silver steel is overwhelmed to make silver foil used for adorning sweets.
Ductility: It is likely one of the properties of metals by advantage of which they are often drawn into wires. For instance, copper and iron will be drawn into wires.
Conductivity: Metals are good conductors of warmth and electrical energy. Warmth and electrical energy can cross by way of them.
Sonorous: Metals produce a ringing sound when struck arduous. So, they’re referred to as sonorous.
Stable: All metals are strong besides Mercury, the one steel which is liquid at room temperature.

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(b) Bodily Properties of Non-Metals

Stable non-metals are delicate and boring. They break down right into a powdery mass on tapping with a hammer. For instance, coal and sulfur.
Non-metals aren’t sonorous.
They’re poor conductors of warmth and electrical energy.
They don’t possess metallic luster.
They possess no malleability and ductility.

All of the above-mentioned subjects are described in an interactive and environment friendly method in order that the scholars may simply perceive them.

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