Metallic Bonding (AI) Flashcards
(15 cards)
What is metallic bonding?
Metallic bonding is the attraction between metal cations and delocalized electrons.
True or False: In metallic bonding, electrons are shared between specific atoms.
False
What do we call the sea of electrons in metallic bonding?
Delocalized electrons
Fill in the blank: Metallic bonds are characterized by _____ conductivity.
high
Which property is NOT typical of metals due to metallic bonding?
Brittleness
What allows metals to be malleable and ductile?
The ability of metal ions to slide over each other without breaking the metallic bond.
Multiple Choice: Which of the following is a characteristic of metallic bonds? A) High melting points B) Low density C) Non-conductive D) Brittle
A) High melting points
How does metallic bonding contribute to electrical conductivity?
The delocalized electrons can move freely, allowing electrical current to flow.
What happens to the metallic bond when a metal is heated?
The metallic bond remains intact, but the metal may become more malleable.
True or False: Metallic bonds are stronger than ionic bonds.
False
What is the role of the metal cations in metallic bonding?
They provide a positive charge that attracts the delocalized electrons.
Fill in the blank: The _____ model describes metallic bonding as a lattice of cations in a sea of electrons.
electron sea
What is one advantage of metallic bonding in terms of material properties?
It allows for high thermal and electrical conductivity.
Multiple Choice: Which of the following metals is known for its excellent conductivity due to metallic bonding? A) Gold B) Sulfur C) Oxygen D) Phosphorus
A) Gold
What is the effect of alloying on metallic bonding?
Alloying can disrupt the metallic bond and alter properties like strength and corrosion resistance.
