Elements, compounds and mixtures (advanced).

This exercise includes extra detail that you do not need to know until GCSE, (focus on the using the classification system).

Elements have one type of atom only

Elements can be found on the periodic table

Elements have one capital letter in their formula only

Compounds have more than one type of element chemically joined together in a fixed ratio.

Compounds have a formula with more than one capital letter.

Compounds can not be found on the periodic table.

Mixtures have more than one type of particle, jumbled together.

The particles do not have to be in a fixed ratio.

e.g.1. inhaled and exhaled air have different percentages of gases.

e g.2. Tea can be weak or strong, contain milk or not and contain sugar or not.

Select the compounds

Select the elements

Select the compounds

Select the mixtures

Select the elements

Select the mixtures

Identify the elements

Identify the compounds

Identify the elements

Select the element

Select the compound

Select the mixtures

Select the mixture

Select the elements

Select the compound

Select the element(s)

Select the compound(s)

Select the mixture

Select the correct options

Select the elements that are metals in period 3

Select the elements that are non-metals in Group 7 (the halogens).

Select the elements that are non-metals in period 3

Select the elements that are metals in group 1

Select the elements that are non-metals in group O (the noble gases)

Note the exact structures will be important at GCSE.

You are just making sure that you can put the species into the correct categories.

Again the details here are only needed at GCSE you need to focus on the formulae and the capital letters.