C1.1 The nature of a substances & chemical reaction

Elements 

Every substance are made up of atoms. 

If i only contains one atom it is a Element 

There are are over 100 diffrent element in the Periodic table 

Atoms in the pH are all have diffrent sybols e.g. Oxygen = O  Sodium = Na 

Atoms Reacting To Form Compounds 

When elements react their atoms join together to form a compound 

Atoms must give, take or share electrons to form a chemical bond which holds the atoms together.

A group of atoms that have joined together are called Moleclue 

Compound is a chemical made from more than one atom/element that has reacted.

Metal atoms lose thier electron to form…