KS3 & KS4 science curriculum

This unit builds on pupils’ prior learning from Atoms, elements and compounds, where they explored the basic building blocks of matter and how elements combine to form compounds. It deepens their understanding by examining atomic structure and how it determines the arrangement of elements in the periodic table. This prepares pupils for the next unit, Structure and bonding, where they will apply their knowledge to explore different types of chemical bonds and how atomic structure influences material properties, reinforcing the connection between atomic theory and chemical behaviour.

1. Atomic structure (very small electron mass)
2. Developing a model for atoms
3. Atoms, elements and compounds
4. Modern periodic table and electron configuration
5. Atomic number and mass number
6. Isotopes and relative atomic mass
7. Relative formula mass
8. Development of the periodic table

• All matter is made up of atoms.
• Each element is made up of just one sort of atom.
• Each element is made of a different type of atom.
• Each element has a chemical symbol of which the first letter is always a capital.
• Group 0 elements are called noble gases and do not react.
• The elements in Group 1 are all soft metals that float on water.
• Group 1 metals get more reactive as you go down the group.
• As you go down Group 7, the state of the elements at room temperature change from gas to solid.
• Group 7 elements get less reactive as you go down the group.
• The transition metals in the middle of the periodic table are not very reactive.