Year 7 - Atoms, Elements and Compounds Flashcards
What is an atom?
A small particle from which all substances are made
What is an element?
A substance containing only one type of atom
What is a molecule?
A particle made from atoms chemically joined together
What is a compound?
A substance made from atoms of different kinds chemically joined together
What is a mixture?
More than one element or compound (not chemically joined together)
What do you get when you chemically join sodium and chlorine together?
Sodium chloride
What do you get when you chemically join magnesium and oxygen together?
Magnesium oxide
What do you get when you chemically join iron and oxygen together?
Iron oxide
What do you get when you chemically join iron and sulphur together?
Iron sulphide
What do you get when you chemically join copper and chlorine together?
Copper chloride