Metallic bonding

Question 1

Metallic Bonding

Answer 1

Involves attraction between delocalised electrons and positive ions arranged in a lattice

Question 2

How is metallic bonding formed?

Answer 2

outer main levels of the atoms merge and are no longer associated with any atom in particular

Question 3

Good conductors of electricity and heat

Answer 3

The delocalised electrons can move throughout the structure
- they have high thermal conductivities. Sea of electrons is partly responsible with energy also spread by increasingly vigorous vibrations of the closely packed ions

Question 4

Strength of Metals

Answer 4

Depends on:

• charge of ion (greater the charge, greater the delocalised electrons so stronger electrostatic forces)
• size of ion (smaller the ion, closer the electrons are to the positive nucleus so stronger the bond)

Question 5

Malleable and ductile

Answer 5

Metals are malleable and ductile. After a small distortion, each metal ion is still in exactly the same environment as before so the new shape is retained

Question 6

Hight Melting Points

Answer 6

They have giant structures. Strong attraction between metal ions and delocalised sea of electrons. Makes them difficult to seperate