Metallic Bonding Flashcards
Description of metallic bonding model
Comprised of positive metal cations closely packed together in a 3-d lattice with their delocalised electrons moving freely throughout the whole lattice.
Why does metallic bonding increase with atomic size?
The core charge increases causing electrons to be close to the nucleus, which means it will be stronger therefore the metallic bonding is stronger.
Why does metallic bonding increase with number of valence electrons?
The more electrons the greater the charge gained when the electrons are lost.
Conductivity of Metallic Bonds
Outer shell electrons are free to move, hence they can conduct charge or transfer heat.
Malleability of Metallic Bonds
The delocalised electrons are able to move to balance the charge when stressed are placed on a metal. Hence they are not brittle and do not shatter.
