Structure And Properties Of Metals Flashcards
Do the electrons move freely in a metal
Yes
What do the valence electrons form in a metal
A sea of electrons
What happens when a natal atom lose their outer electrons
They form a lattice of positive electrons
What is metallic bonding
When the negatively charged electrons attract all the positive metal ions and bind them together with strong electrostatic forces of attraction as a single unit
What is the MP and BP of metals
High
Why are the MP and BP of metals so high
Due to the strong attraction force between the positive metal ions and the sea of electrons
Why do metals conduct electricity
Due to the mobile electrons within the metallic structure
Why are metals malleable
The rows of ions can slide over one another repositioning themselves back into strong bonds
What’s are metals ductile
They are able to be drawn into thin wires as the ions slide over one and another and are held right together by the strong bonds
Why do metals have a high density
The atoms/ions are closely packed together
Why do metals have lustre
Light reflects off the ions which are packed closely together
Why are metals sonorous
Sound energy is absorbed by the electron cloud and is not dissipated
Do do metals slide easily
As all metal atoms are in straight layers
