3.3 Ionic Bonding

Question 1

Oxidation

Answer 1

Loss of electrons

Question 2

Reduction

Answer 2

Gain of electrons

Question 3

Ionic bonding

Answer 3

Occurs between a metal and non-metal

Question 4

Same periodic table group

Answer 4

The atoms have the same charge

Question 5

Charges on ionic bonding

Answer 5

The charges balance, positive = negative

Question 6

Iron Oxide = Fe+3 & O-2

Answer 6

Fe2O3

Question 7

Ionic structure

Answer 7

Ionic compounds are arranged in a giant ionic lattice, the ions alternate - + - + - + -

Question 8

Ionic Bonding

Answer 8

The electrostatic attraction between positive and negative ions. It is always a very strong attraction

Question 9

Why do ionic compounds have high melting points

Answer 9

Strong electrostatic attraction between positive and negative ions requires lots of energy to overcome

Question 10

What do ions with higher charges have

Answer 10

A higher melting point as the attraction is greater

Question 11

Ionic compound solid

Answer 11

When solid, there is no conductivity as the ions can’t move freely

Question 12

Ionic compounds, liquid

Answer 12

In liquid / dissolved state, there is high conductivity as the ions can move freely