What is meant by saying that metals are:
(i) Malleable (ii) Ductile (iii) Lustrous and (iv) Sonorous
Answers
1.property of metals from which they can be beaten by hammer to form thin sheets ,known as malleability .then the metal is said to be malleable.
2.the property of metal from which it can be drawn into thin wires ,known as ductility. then the metal is said to be ductile.
3. The property of metal which give them shiny and bright appearance is lustrous.
4. The property of metal which make them to produce sound when beaten is said to sonorous.
(i) Malleable (ii) Ductile (iii) Lustrous and (iv) Sonorous
Explanation:
Malleability is a substance's ability to deform under pressure or compressive stress. If malleable, a material may be flattened into thin sheets by hammering or rolling. Malleability is the ability of a substance, usually a metal, to be deformed or molded into a different shape.
Ductility is the ability of the material to undergo significant deformation before rupture.
Lustrous means it reflects light in a glossy and shiny way. It refers to the shine of the metal's surface.
When a coin made of metal is dropped on hard floor it originates a ringing sound. This property of metal is known as Sonority. Sonority is one of the major features of metal when it is hit to any other substance to emit a fundamental resonant sound. Elements that make a sound when they come in contact with other substance are called sonorous metals.