Reactivity series

• 1st is Potasium/K
• 2nd is Sodium/Na
• 3rd is Lithium/Li
• 4th is calcium/ca
• 5th is Magnesium/Mg
• 6th is Aluminium/Al
• 7th is Carbon/C
• 8th is Zinc/Zn
• 9th is Iron/Fe
• 10th is Lead/Pb
• 11th is Hydrogen/H
• 12th is Copper/Cu