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Slide 1

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What are we learning today...
Ionic bonding
1. To draw the dot & cross diagram for magnesium
oxide and calcium chloride.
2. To describe in detail an ionic lattice.
Key Words: Giant lattice, ionic compound.…read more

Slide 2

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Pair work Starter
Here's the definition...what's the key word?
· A charged particle formed by an atom losing or gaining
· All the atoms have the same number of protons.
· More than one type of atom chemically bonded together.
· A chemical bond formed by transferring electrons.
· A section of the periodic table whose elements all form 1+
5 mins
*…read more

Slide 3

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Class discussion L.O 1
Ionic compounds are usually formed when metals react with
The ions formed are held next to each other by very strong
forces of attraction between the oppositely charged ions. This
electrostatic force of attraction, which acts in all directions, is
called ionic bonding.…read more

Slide 4

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Class discussion L.O 1
The ionic bonds between the charged particles result in an
arrangement of ions that we call a giant structure. (giant
The force exerted by an ion on the other ions in the lattice
acts equally in all directions. This is why the ions in a giant
structure are held so strongly together.
The giant structure of ionic compounds is very regular. This is
because the ions all pack together neatly, like marbles in a
box.…read more

Slide 5

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Individually Task
Q: What name do we give to the arrangement of ions in an
ionic compound?
Q: What holds the ions together in this structure?
1) Giant lattice.
2) Electrostatic forces of attraction between oppositely
charged ions.
5 mins…read more

Slide 6

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Class discussion L.O 2
Sometimes the atoms reacting need to gain or lose 2 electrons
to gain a stable noble gas structure.
eg. Magnesium (2,8,2) reacts with oxygen (2,6).
When these two elements react they form magnesium oxide
(MgO). This is made up of magnesium ions with a double
positive charge (Mg2+) and oxide ions with a double negative
charge (O2-).
We can represent the atoms and ions involved in forming ionic
bonds by dot and cross diagrams.
*…read more

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