C4 IONIC THEORY REVISION LESSON

IONIC THEORY REVISION LESSON

A QUICK RECAP OF IONIC THEORY

Discuss with the Person Next To You

You have 3 - 4 minutes to discuss and recap what we did in the last two lessons before half term. You will be asked to feedback the class when we reconvene the class as a group to

recap the lesson.

IONIC THEORY

To explain that salts consist of ionsTo use ionic theory to explain some of the

properties of saltsTo use ionic theory to explain the conductivity of

salts when molten or in solution

GCSE JAN 2009 Q5 A332/02

F-TIER JAN 2009 A332/01

ANSWER TO GCSE JAN 2009 Q5 A332/02

F- TIER Q5 JAN 2009 A332/01

GCSE JUNE 2009

Jan 2008 Q2

GCSE JANUARY 2008

Mark Scheme Jan 2008

Mark Scheme

Losing And Gaining Electrons

For some atoms it is easier to lose electrons than to pick up new ones.

Give 2 examples ofi) Atoms that will prefer to lose electrons

than gain new onesii) Atoms that will prefer to gain or pick up

new electrons than lose electrons.

IONIC THEORY

Page 56- 57

Why do solid compounds made of

ions not conduct electricity?

Copy Diagrams showing the movement of ions

Your Task Copy And Answer Task

What happens to the atoms of alkali metals and molecules of halogens

when they react?

Ions in solid sodium chloride

Chlorine (Cl) has 17 total electrons: 2 in its 1st shell, 8 in the 2nd, and 7 in the 3rd.

We know that the capacity of the 3rd shell is 8, so chlorine will try to pick up another electron to fill

its outermost shell.

Where does it get this electron?

Atoms To Ions

In this way both atoms now become ions. The opposite charges on the Na+ and Cl- ions will

cause them to attract each other and form an ionic bond.

Thus Na and Cl react to form the compound NaCl