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Year 9

Group 1

Describe the physical and chemical properties of Group 1 metals and trends in their reactions with oxygen and water.

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Year 9

Group 1

Describe the physical and chemical properties of Group 1 metals and trends in their reactions with oxygen and water.

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Lesson details

Key learning points

  1. Describe some of the physical and chemical properties of Group 1 metals
  2. Describe the trends in physical and chemical properties of Group 1 metals
  3. Write chemical equations for the reactions of Group 1 metals with water and oxygen

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Starter quiz

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6 Questions

Q1.
Which statement about the periodic table is correct?
There are equal numbers of metals and non-metals.
Correct answer: There are more metals than non-metals.
There are more non-metals than metals.
Q2.
Metals usually have melting and boiling points.
Correct Answer: high, higher
Q3.
Metals can be shaped without breaking because they are...
conductors.
dense.
Correct answer: malleable.
shiny.
sonorous.
Q4.
Compared to non-metals, metals are:
good conductors of electricity but not heat.
Correct answer: good conductors of heat and electricity.
good conductors of heat but not electricity.
not good conductors of heat and electricity.
Q5.
Copper is used to make electrical wires because...
Correct answer: copper is a good conductor of both heat and electricity.
copper is a good conductor of electricity but not heat.
copper is a good conductor of heat but not electricity.
copper is not a good conductor.
Q6.
Match the metal use with its property.
Correct Answer:Aluminium is used to make aeroplanes,because it is malleable and light.

because it is malleable and light.

Correct Answer:Iron is used to make bridges,because it is strong and cheap.

because it is strong and cheap.

Correct Answer:Gold is used to make jewellery,because it is shiny and unreactive.

because it is shiny and unreactive.

Correct Answer:Copper is used in electrical circuits,because it conducts electricity and is ductile.

because it conducts electricity and is ductile.

Exit quiz

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6 Questions

Q1.
The elements in Group 1 are also known as the …
alkali earth metals.
Correct answer: alkali metals.
halogens.
noble gases.
transition metals.
Q2.
Select two physical properties of the alkali metals.
brittle
high melting point
Correct answer: low density
poor conductors of heat
Correct answer: soft
Q3.
Starting with the alkali metal with the lowest reactivity, sort the alkali metals in order of reactivity.
1 - lithium
2 - sodium
3 - potassium
4 - caesium
5 - rubidium
Q4.
What is the product of a reaction between sodium and oxygen?
Correct Answer: sodium oxide
Q5.
Match the alkali metal to its reaction with water.
Correct Answer:lithium,floats, moves slowly and fizzes

floats, moves slowly and fizzes

Correct Answer:sodium,floats, moves quickly, ignites with an orange flame

floats, moves quickly, ignites with an orange flame

Correct Answer:potassium,floats, moves very quickly, ignites with a lilac flame

floats, moves very quickly, ignites with a lilac flame

Correct Answer:rubidium,almost instant violent production of white and orange sparks

almost instant violent production of white and orange sparks

Q6.
Complete the word equations by matching the reactants and products.
Correct Answer:lithium + water →,lithium hydroxide + hydrogen

lithium hydroxide + hydrogen

Correct Answer:sodium + oxygen →,sodium oxide

sodium oxide

Correct Answer:sodium + water →,sodium hydroxide + hydrogen

sodium hydroxide + hydrogen

Correct Answer:rubidium + oxygen →,rubidium oxide

rubidium oxide