18/10: Ionic compounds

• Chemistry
• Secondary Education

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CHEMISTRY 9

                   18: Ionic compounds

Topic 6: Chemical bonding and Formulae

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CHEMISTRY 9

                   18: Ionic compounds

Topic 6: Chemical bonding and Formulae

define ionic bonds, cation, and anion.

draw the Bohr's diagrams of Group I and Group VII atoms and ions.

describe how ions are formed using the dot-and-cross diagram.

Ionic compound

Non-ionic compound

sodium chloride

carbon dioxide

potassium iodide

sugar

lithium bromide

sulfur

iron

oxygen gas

water

Evidence of Chemical change

• effervescence or bubbling = gas is produced.
• change in temperature = increase or decrease
• change in colour
• flame
• emission of light

Ionic compound

• A pure substance consisting of chemically bonded ions.

Ionic compound

• A pure substance consisting of chemically bonded ions.

Ionic compound

• A pure substance consisting of chemically bonded ions.

cation

Ionic compound

• A pure substance consisting of chemically bonded ions.

anion

cation

Types of ions

Types of ions

Types of ions

Recall what you learned.

• Draw a Bohr's diagram for sodium, ₁₁Na, and write its electronic configuration.

Recall what you learned.

• Draw a Bohr's diagram for sodium, ₁₁Na, and write its electronic configuration.

Types of ions

Define ionic bonds, cations, and anions.

I can define ionic bonds, cations, and anions.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.

How does a CATION form?

neutral sodium atom

positive sodium cation

metal

How does a CATION form?

neutral magnesium atom

positive magnesium cation

metal

How does a ANION form?

neutral chlorine atom

positive chloride anion

NON-metal

How does a ANION form?

neutral sulfur atom

positive sulfide anion

NON-metal

Describe how ions are formed using the dot-and-cross diagram.

I can describe how ions are formed using the 

dot-and-cross diagram.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.

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CHEMISTRY 9

                   18: Ionic compounds

Topic 6: Chemical bonding and Formulae

What does ionic bonding look like?

Metal + Non-metal

What does ionic bonding look like?

Metal + Non-metal

What does ionic bonding look like?

Metal + Non-metal

What does ionic bonding look like?

Metal + Non-metal

Draw the Bohr's diagrams of group I and VII atoms and ions.

I can draw the Bohr's diagrams of group I and VII atoms and ions.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.

Practice your skill:

Choose one only.

Describe how:

 (a) lithium ionically bonds with fluorine

 (b) sodium ionically bonds with fluorine

Share your thought process in calculating the relative molecular/formula mass.

I can define ionic bonds, cations, and anions.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.

I can describe how ions are formed using the 

dot-and-cross diagram.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.

I can draw the Bohr's diagrams of group I and VII atoms and ions.

Yes, I can confidently do it.

Yes, I can but need more practice.

No, I lack confidence so I need more practice or ask help from my teacher.