ATOMS
-Define the term ‘atom’
-Understand the structure of an atom and explain the differences between the three sub‐atomic particles
- Explain what an atoms atomic mass number and atomic number mean
- Draw the electron arrangement for atoms of the first 20 elements
- Determine the structure of an atom based on data from the periodic table
- Draw a Bohr (electron shell) model of an atom

ELEMENTS, IONS AND COMPOUNDS
-Name the first 20 elements and their symbols of the periodic table
-Explain the differences between an element, compound and mixture
- Calculate the number of each type of atoms in different compounds
-Explain how ions form

CHEMICAL AND PHYSICAL REACTIONS
-Explain the differences between a chemical and physical change
-Write word equations from chemical reactions 
-Be able to balance symbol chemical equations 
-Explain where an atom is found on the periodic table relates to how violent it reacts 
-Explain how acid reacting with metals and metal carbonates form chemical reactions, and explain how they are tested 

atom
electron
proton
neutron
nucleus
atomic number
atomic mass
group
period
element
compound
mixture
ion
​chemical change
physical change
limewater test
pop test
oxygen test