Properties of metals Flashcards
What are delocalised electrons
Delocalised electrons are electrons in an atom, ion or molecule that is not connected to a single atom or covalent bond.
Describe the structure and bonding in metals
Arranged in lattice structure surrounded by delocalised electrons. Metallic bonds result from the electrostatic attraction between metal cations and delocalized electrons.
Why are Metals good conductors of heat
Metals are good conductors of heat because their atoms are tightly packed together and metals have free moving electrons that can transfer heat efficiently.
Why are metals good conductors of electricity
Free moving delocalised electrons all move towards a positive electrode and away from a negative electrode in an electric circuit
Why are metals malleable
When a force causes metal ions to move past each other, layers of ions are still held together by delocalised electrons between them.
High melting and boiling point
Strong electrostatic forces of attraction between positive metal ions and the sea of delocalised electrons holds the metallic lattice together. The stronger force results in high melting and boiling point.
Do metallic atoms have low or high electronegativity
Metallic atoms have low electronegativites
