C2 Bonding

Question 1

What is ionic bonding?

Answer 1

Ionic bonding is the electrostatic attraction between positive and negative ions
It has a relatively strong attraction

Question 2

How are ionic compounds held together?

Answer 2

They are held together in a giant lattice
It’s a regular structure that extends in all directions in a substance
Electrostatic attraction between positive and negative ions holds the structure together

Question 3

State the properties of ionic substances

Answer 3

High melting and boiling point (because of the strong electrostatic forces between oppositely charged ions)
Do not conduct electricity when solid (ions in fixed positions)
Conduct when molten or dissolved in water - ions are free to move

Question 4

What is important when working out a formula of an ionic compound?

Answer 4

Ionic compounds are electrically neutral

Question 5

How are ionic compounds formed?

Answer 5

Reaction of a metal with a non-metal

Question 6

What is a covalent bond?

Answer 6

A covalent bond is a shared pair of electrons between two atoms

Question 7

Describe the structure and properties of simple molecular covalent substances

Answer 7

Do not conduct electricity (no ions)
Small molecules
Weak intermolecular forces meaning:
They have low melting and boing points