Metallic Bonding Flashcards
1
Q
Delocalised electrons
A
Valence electrons that are free to move
2
Q
Sea of Electrons
A
when electrons are shared with all cations
Lattice shape
3
Q
Why are metals good conductors of electricity & heat
A
Delocalised electrons are able to transfer heat and charge
4
Q
Why are they malleable and ductile?
A
Bonds aren’t being broken, they just move along with the force,
Held together by electrostatic attraction
5
Q
Why do they have a high melting and boiling point?
A
Electrostatic attraction is strong -> need more heat to break it up
6
Q
The bigger number of cation (2+,3+)…
A
The higher melting point due to more electrostatic attraction
7
Q
Why are they dense?
A
Tightly packed due to electrostatic attraction
8
Q
Why are they shiny?
A
Moving electrons can bounce light off
