Using the cards – Match up the element’s symbol with its atomic structure

Using the cards –

Match up the element’s symbol with its atomic structure

Ionic bonding lesson objective:

To understand how ionic bonding occurs

between atoms Lesson outcomes:

1. Draw dot and cross diagrams to show ionic bonding

2. Describe the properties of an ionic compound.

3. Explain how an ionic bond forms.

pass

merit

distinction

Btec -Working towards

Bonding basics Complete the chart using your atomic structure

cards Element Number of

electrons Number of electrons on outside shell

Group number

Easy to lose or gains and an electron?

Lithium 3 1 1

Beryllium 2

5 3

8 6

Fluorine

Bonding basics Complete the chart using your atomic structure

cards Element Number of

electrons Number of electrons on outside shell

Group number

Easy to lose or gains and an electron?

Lithium 3 1 1 loseBeryllium 4 2 2 lose

Boron 5 3 3 loseOxygen 8 6 6 Gain Fluorine 9 7 7 Gain

When an atom gains or loses an

Electron it is called an Ion

Ionic Bonds

• Ionic bonds are formed by one atom transferring electrons to another atom to form ions.

• Ions are atoms, which have lost or gained electrons and therefore have a negative or positive charge

• The atom losing electrons forms a positive ion and is usually a metal.

Sodium atom

+++++++++++

-----------

• The atom gaining electrons forms a negative ion and is usually a non-metallic element.

++++++++++

----------

++++++++

---------

Chlorine atom

X

X XX X

XX

XX

X

XX XX X

XX

Sodium atom Chlorine atom

Electron transfer

X

X XX X

XX

XX

X

XX XX X

XX

+Loses

electron

-Gains

electron

Positive and negative ions attract

+ -

Sodium Chloride

Positive and negative ions

attract

X

X XX X

XX

XX

X

XX XX X

XX

Ionic bonding

Answer these questions:

An atom that gains one or more electrons will have a ____________________ charge.

An atom that loses one or more electrons will have a ____________________ charge.

An atom that gains or loses one or more electrons is called an ____________.

POSITIVE

NEGATIVE

ION

What is an ionic bond?

Atoms will transfer one or more ________________ to another to form the bond.

Each atom is left with a ________________ outer shell.

An ionic bond forms between a ___________ ion with a positive charge and a ________________ ion with a negative charge attracting each other.

Example: Sodium + Chlorine

ELECTRONS

COMPLETE

METALNONMETAL

X

X XX X

XX

XX

X

XX XX X

XX

Sodium chloride

Games for learning – dominoes

Which domino below will match Chlorine?

Which domino below will match oxygen?

Sodium chloride

Sodium chloride Lithium oxide

1 2 3 4 5 6 7 0

The periodic table

for ionic bonding

Groups Groups

Metals Non metals

What's wrong?

Li Ca

Li

Li

Li

Ca

Li

Li

Li

Li

S

Mg

Mg

S

Mg

Ca Mg

Ca S

S

Ionic bonding lesson objective:

To understand how ionic bonding occurs

between atoms Lesson outcomes:

Draw dot and cross diagrams to show ionic bonding

pass

Btec -Working towards

Ionic bonding lesson objective:

To understand how ionic bonding occurs

between atoms Lesson outcomes:

Draw dot and cross diagrams to show ionic bonding and describe

the properties of an ionic compound.

merit

Btec -Working towards

Ionic bonding lesson objective:

To understand how ionic bonding occurs

between atoms

Lesson outcomes:Draw dot and cross diagrams to show

ionic bonding and describe the properties of an ionic

compound.

Explain how an ionic bond forms.

Btec -Working towards

distinction

_

+

Metal

Non Metal

Compound

Ion