This document discusses ionic theory and properties of salts. It recaps that salts consist of ions and ionic theory is used to explain properties like conductivity when molten or in solution. Atoms that prefer to lose electrons to become cations include metals like sodium, while atoms that prefer to gain electrons to become anions include nonmetals like chlorine. When sodium and chlorine react, sodium loses an electron to become Na+ while chlorine gains that electron to become Cl-, and the ions are held together by ionic bonds in solid sodium chloride.

1. IONIC THEORY
REVISION
LESSON

2. 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.

3. IONIC THEORY
To explain that salts consist of ions
To use ionic theory to explain some of the properties
of salts
To use ionic theory to explain the conductivity of
salts when molten or in solution

5. GCSE JAN 2009 Q5 A332/02

6. F-TIER JAN 2009 A332/01

7. ANSWER TO GCSE JAN 2009 Q5 A332/02

8. F- TIER Q5 JAN 2009 A332/01

9. GCSE JUNE 2009

11. Jan 2008 Q2

12. GCSE JANUARY 2008

13. Mark Scheme Jan 2008

14. Mark Scheme

15. Losing And Gaining Electrons
For some atoms it is easier to lose electrons than
to pick up new ones.
Give 2 examples of
i) Atoms that will prefer to lose electrons than
gain new ones
ii) Atoms that will prefer to gain or pick up new
electrons than lose electrons.

16. IONIC THEORY
Page 56- 57
Why do solid compounds
made of ions not conduct
electricity?
Copy Diagrams showing the movement of ions

17. Your Task
Copy And Answer Task
What happens to the atoms of alkali
metals and molecules of halogens when
they react?

18. 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?

19. 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