Key Words Flashcards
What is Diffusion
When particles move from an area of high concentration to an area of low concentration
What is an atom
The smallest particle of matter
What is a state of mass
Solid,liquid,gas
What is the particle theory
Theory that describes the arrangement and movement of particles in solids,liquids,gases
What is an element
A substance that contains one type of atom
What is a Group
A vertical column of elements in the periodic table with similar properties
What is a period
Horizontal rows in the periodic tables
What is Compound
A substance that contains more than one type of atom chemically joined together in a fixed ratio
What is a mixture
A substance that is made from more than one element or compound, but not joined together , not a fixed ratio
What is thermal decomposition
The breaking down of a substance into simpler substances or elements using heat
What is electrolysis
The breaking down of a substance into its elements using electricity
What is an anode
The positive electrode
What is a cathode
The negative electrode
Electrolyte
The solution containing ions to be electrolysed
What is an ion
A charged particle. e.g H+
