An ion is an atom or group of atoms with a positive or negative charge due to the loss or gain of electrons.

A salt is an ionic compound formed from positive and negative ions electrostatically attracted to each other.

The reactivity series shows metals placed in order of reactivity with the most reactive metal at the top.

Displacement is where a more reactive element takes the place of a less reactive element in a compound.

Developing a reactivity series for metals

Combined science

Earth's resources and sustainable development

Fractional distillation of crude oil

Cracking fractions of crude oil

Polymer structures

Extraction of metals by reduction

Redox reactions

Alternative methods of extracting metals: phytoextraction and bioleaching

Life cycle assessments (LCAs)

In the Atmosphere and Changing Climate unit, pupils will build on their understanding of Earth's resources to learn about the evidence for the composition and evolution of the Earth's atmosphere and the impact of human activity on climate change.

In the Earth's Resources unit, pupils learned about the composition and structure of the Earth, and the rock cycle.

This unit covers crude oil, its role as a hydrocarbon source, and separation by fractional distillation. It explores cracking, metal reactivity, and extraction methods, including biological alternatives. Emphasis is on recycling, life-cycle assessments, and evaluating decisions.

Using Earth's resources

What is the name of the reaction where a more reactive element will take the place of a less reactive element in a compound?

it is an example of a combustion reaction

Which of the following statements about the reaction shown are correct?
calcium + iron sulfate → calcium sulfate + iron

potassium more easily loses electrons to form negative ions

potassium more easily gains electrons to form negative ions

potassium more easily loses electrons to form positive ions

potassium more easily gains electrons to form positive ions

Why is potassium more reactive than iron?

The non–metal carbon is positioned between which two metals in the reactivity series?

Which of the following substances are products of the reaction between zinc and hydrochloric acid?

Which of the following substances are products of the reaction between lithium and water?

Why is the metal gold used to make jewellery?

When a metal reacts with an acid, one of the products is a salt. What is the other product?

When magnesium reacts with nitric acid what is the name of the salt produced?

they are located in Group 1 of the periodic table of elements

they are located in Group 2 of the periodic table of elements

Group 1 metals get more reactive as you go down the group

Group 1 metals get less reactive as you go down the group

Potassium, sodium and lithium are highly reactive metals. Which of the following statements about these metals are correct?

an atom, or group of atoms, with a positive or negative charge 

a more reactive element takes the place of a less reactive element

ionic compound formed from positive and negative ions

Match the following keywords to the correct definition.

Starter Quiz

Why is the metal gold used to make jewellery?