Structure, Bonding and Properties (Completed)

GCSE Chemistry - Structure, Bonding and Properties Ionic, Covalent, Metallic

What is the relative mass of a proton?

1

What is the relative charge of a proton?

+1

What is the relative mass of a neutron?

1

What is the relative charge of a neutron?

0

What is the relative mass of an electron?

0

What is the relative charge of an electron?

-1

What is ionic bonding between?

A metal and non-metal

If an element loses an electron it forms what ion?

A 1+

Why are ionic compounds solid at room temperature?

They are arranged in a giant lattice structure that is held together with strong electrostatic attraction

In what states can ionic compounds conduct electricity?

When they are liquid or have been dissolved in water

What does covalent bonding occur between?

Two non-metals

How does covalent bonding work?

The atoms share electrons so they both have a full outer-shell

Why do simple covalent molecules have a low boiling point?

They are held together by weak intermolecular forces and don’t require much energy to break

Are covalent bonds weak or strong?

Strong

Can covalent molecules conduct electricity? Why?

They have no delocalised electrons

How many times can a carbon atom bond?

4

Why is diamond hard?

Each carbon atom is bonded to four other carbon atoms

Why can graphite conduct electricity

It has delocalised electrons because each carbon atom only bonds three times

Why is graphite slippery

It is in layers that can easily slide over each other because they are held together with weak intermolecular forces

What does metallic bonding happen between

Metals only

How are metals held together

Strong electrostatic attraction

What are alloys

A mixture of metals

Why are alloys stronger than pure metals

They contain different sized particles that distort the layers so they cannot easily slide over each other

What are polymers made from

Monomers

How are monomers joined

Covalent bonds

What are fullerenes

Spherical hollow shaped molecules of carbon

What is a medical use for fullerenes

Drug delivery