ENERGY LEVELS OF AN ATOM

THE ENERGIES CORRESPONDING TO EACH OF THE ALLOWED ORBITALS ARE CALLED..

4 ENERGY LEVELS

• 1st- can contain up to 2 electrons
• 2nd- can contain up to 8 electrons
• 3rd- can contain up to 18 electrons
• 4th- can contain up to 32 electrons

ATOMS

• Atoms are the most stable with the full outer shell
• One which after the first contains 8 electrons

ELECTRONS

• The properties of an element are determined by its outer most electrons
• Those in the highest energy orbital

BOHR MODEL

STAIRCASE

• When excited atom reaches a certain point..
• It jumps up to the next level of energy
• The atoms are quantized , which means..
• That only particular energy is relased
• Energy extra energy forms light