Malleability
What is the ability of a metal to be hammered into thin sheets called
Malleability
What type of bonding hold the particles in metal together
Metallic bonding
Is ductility able to form sheets or wires
Wires
What properties allows gold to be drawn into very fine wires
Ductility
Give 1 example of everyday products we use that demonstrated the malleability of aluminium
Aluminium foil
Layers of positive metal ions
Which metal is commonly used for electrical wiring becasue it is ductile and conducts electricity
Copper
Name one metal that is both ductile and malleable
Copper , gold,silver or aluminium
What happens to the layers of ions when a metal is hammered down?
The layers slide over each other
What are the moblie electrons in a metal called?
Delocalised electrons
What happens when to the layers of ions when a metal is stretched into a wire
The layers move and rearrange as the metal changes shape
Whats the difference between malleability and ductility
Malleability is the ability to form sheets , while ductility is the ability to form wires
Why can layers of metal ions slide over each other without the metal breaking?
The delocalised electrons continue to attract the positive metal ions, maintaining metallic bonding
Explain how metallic bonding allows metals to be hammered into a sheet
When force is applied, layers of positive metal ions moves past one another.The sea of delocalised electrons continues to attract the positive ions so the metallic bonding is remained and metal changes shape rather than shattering.
Why can a ductile metal be stretched without immediately breaking apart
It’s layers of ions can move past one another while metallic bonding js maintained by the delocalised electrons
What is ductility
This mechanical property allows metals to be drawn into wires because the non-directional nature of metallic bonding allows rows of metal cations to slide past one another without disrupting the electrostatic attraction between the nuclei and this specific, mobile structure.
A student says that metals are malleable because their metal bonds break easily. Explanations why this statement is incorrect
The metallic bond is not simply broken. Layers of ions move past one another while the delocalised electrons continue to attract the positive ions
Compare the malleability of metals with the brittleness of ionic compounds , explaining both using their particle arrangement and forces
Im metals , layers of positive ions can move past one another while attraction to the delocalised electrons maintains metallic bonding . In ionic compounds , shifting the layers can bring ions of the same charge together , causing strong repulsion an the compLund to shatter
A student compares copper and sodium chloride . Copper can be hammered into a thin sheet but sodium chloride crystals shatter when struck.
explain why these substances behave differentl, referring to their structures , particles and forces.
Copper consists of positive metal ions surrounded by delocalised electrons. When copper is hammered into a, its layers of ions can move past one another while the delocalised electrons maintain their attraction to positive ions . Sodium chloride has alternating positive and negative ions in a 3D lattice . When layers shift , ions with the same charge can become adjacent , causing strong electrostatic repulsion due to the bonds being directional and making the crystal shatter.
Explain how metallic bonding allows a metal to be drawn into a wire
When a force stretches the metal , players of positive ions can move past one another . The delocalised elections continue to attract the positive ions, maintaining the metallic bonding as the metal changes shape.