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Atom An atom is a fundamental piece of matter. Atoms are made up of protons, neutrons and electrons. Electrons Neutrons Nucleus Protons
Element An element is a substance that is entirely made up of one type of atom.
Metal A metal is an element, compound or alloy that conducts electricity and heat. Metals are malleable and ductile. Copper
Non-Metal A non-metal is an element in the periodic table that does not have the properties of a metal element such as malleability. Non metals are usually found as gases in nature or weak, brittle solids. Sulphur
The Periodic Table The Periodic Table is a tabular display of the chemical elements.
What is a Compound A chemical compound is a pure chemical substance consisting of two or more different chemical elements.
What is a chemical reaction? A chemical reaction is a process that leads to the transformation of one set of chemicals substances to another.
What is the difference between a chemical and physical reaction? A physical change is reversible, a chemical change is not. For example, the freezing of water would be a physical change because it can be reversed, whereas the burning of wood is a chemical change because you can’t reverse it.
Identifying Chemical reactions Heat, light, gas or precipitate
What factors affect a reaction rate? Temperature, concentration, size of particles or using a catalyst.