Metal Reactivity Series Lab 2015

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Teaghan Hignett March 15, 2015 Mr. Cho SCH3U Metal Reactivity Series Lab 2015 Question: What is the relative reactivity of aluminum, potassium, copper, iron and hydrogen? Introduction: This lab will introduce several key concepts surrounding metal reactivity as well as electronegativity and periodic trends on the periodic table. Electronegativity by definition is a measure of the tendency of an atom to attract a bonding pair of electrons. In a bond between atoms in a molecule, the atom that is more electronegative will attract the bonded pair of electrons closer to it’s own nucleus. Reactivity refers to how vigorously or the likelihood of a element to react with other elements or substances. Electronegativity can be used to determine the reactivity of a substance as well as using ionization energy (how easily electrons can be removed from an outer shell). This lab will allow us to look into the relative reactivity of metals. Relative reactivity means the reactivity scale in order of decreasing reactivity between the 5 metals chosen above. The tests that allow us to build a reactivity series for metals use Single Displacement Reactions. When performing these tests, the substances will only react if substance A is more reactive than substance B. If no reaction occurs than substance B is more reactive that A. This happens because A and B are cations and the X is what will bind with either A or B and X is also a anion. Anions will only switch cations if it benefits them

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