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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