C3 Structure And Bonding

Question 1

Covalent bonding

Answer 1

Electrostatic attraction between a shared pair of electrons and the nuclei of two atoms

Question 2

Ionic bonding

Answer 2

Electrostatic attraction between oppositely charged ions
Atoms are transferred.

Question 3

A giant lattice/structure is a result of

Answer 3

The ionic bonds between the charged particles

Question 4

Ionic compound/lattice properties (solid)

Answer 4

High melting/boiling point as heat has to overcome all the electrostatic forces of attraction
Not a conductor because its ions are held in fixed positions in the lattice

Question 5

Molten Ionic lattice properties

Answer 5

High temp provides enough energy to overcome the many strong attractive forces between ions. Ions are feee to move around in the molten compound making it a conductor

Question 6

Ionic compound in solution

Answer 6

Water molecules seperate ions from the lattice. Ions are free to move around within the solution.
It does conduct elecrticity.

Question 7

Metalic bonds

Answer 7

Electrostatic attraction between delocalised outer shell electrons and metal ions

Question 8

Giant structures

Answer 8

All solids at room temperature
High melting points beacuse lots of energy is required to break many strong bonds

Question 9

Simple molecular/monatomic properties

Answer 9

‘Soft’ soldis, liquids or gases at room temperature (25°C) with Low melting points and boiling points as not much energy is required to break weak intermolecular forces between molecules.