Bonding

Question 1

What is ionic bonding?

Answer 1

Ionic bonding is the strong electrostatic attraction between positively charged ions. This happens between metals and non-metals!

Question 2

What is a simple covalent structure?

Answer 2

It has weak intermolecular forces between the molecules but are held by covalent bonds between the atoms which are really strong. They have a low melting point so can be broken down easily.

Question 3

Giant covalent structure

Answer 3

They have strong covalent bonds between atoms, no intermolecular forces between them (could be a lattice). They have a high melting point so is hard to break down

Question 4

What are polymers

Answer 4

Polymers are large molecules that are made up of repeating units called monomers. They are held by covalent bonds.

Question 5

What are the forces between polymers?

Answer 5

Polymers aren’t linked, so they only can interact by intermolecular forces and therefore can be easliyu broken when heated.

Question 6

Thermosoftening

Answer 6

Plastics which will soften when heated and can be reshaped.

Question 7

thermosetting

Answer 7

Plastics that do not soften on heating. They are used when resistance to heat is important.

Question 8

Metallic bonding

Answer 8

the strong electrostatic attraction between the sea of delocalised electrons and positively charged metal ions