Exploring Reactivity and Periodicity

The guiding question for this lab is Is reactivity a periodic property? We were trying to answer this to gain a better understanding on how the elements are arranged in the periodic table and find if reactivity was a periodic or quasi-periodic property. During our experiment we carried out reactions between various elements and water, we then recorded all of our results in a table. Our claim was Yes, Reactivity is a periodic property. Our evidence is below.



Metals                  Reactions                   
-Potassium(1c4r)    Sparked, smoke was released, sizzling sound, dissolved

-Sodium(1c3r)         Moved around water sporadically, smoke was released, sizzling sound, dissolved

-Calcium(2c4r)        Bubbling, gas is produced, heat was produced

-Magnesium(2c4r)   Strip of metal turned pink, bubbles formed

-Copper(11c4r)         No reaction

*Numbers and letters in parentheses show where the element is located in Periodic Table, C=column R=row. The elements are listed in order from most reactive to least reactive

Justification
Based upon observations the lower the element and the further left it is the more reactive it is. Potassium more reactive than sodium, sodium was more reactive then calcium, calcium was more reactive then magnesium, and magnesium was more reactive then copper.

     
If you look at the tested elements in the periodic table you can see that they follow the guidelines in order to be considered periodic. So yes reactivity is a periodic property.

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