Chemical Reactivity of Metals
❖ The purpose of this lab is to study the chemical reactivity of five different metals and
discover the periodic trend for the chemical reactivity (most reactive to least reactive) of
metals using the observations from the lab.
❖ My prediction was that the metal that is farthest down and to the left on the periodic table
(Potassium) will be the most reactive and the metal farthest up and to the right on the
periodic table ( Magnesium) will be the least reactive.
❖ 250 mL beaker
❖ Wire mesh
❖ Watch glass
❖ Safety glasses
❖ Litmus Paper
Firstly, make sure that the work area is clear and safe before you begin the lab. Next, fill the 250
mL beaker to 200 mL with tap water. Then, cut each metal needed into a pea size portion with
the knife provided. Then, use the provided tweezer to pick up the metal and carefully put it into
the watch glass to place it into the 250mL beaker. Carefully put the metal into the water filled
beaker and cover the beaker with wire mesh immediately to prevent any accidents or
explosions. After the metal has been placed in the 250 mL beaker, record the chemical and
physical properties of the metal and observe what was happening to the metal. Once the metal
has completely dissolved and settled, place a drop of phenolphthalein into the 250 mL beaker
and record whether the metal was acidic, basic, or neutral. Clean the 250 mL beaker and
dispose any contents of the...