How do you tell which element/ molecule is the most reactive? (nonmetals)

  1. H2O
  2. O2
  3. Cl
  4. Kr
  5. N2
  6. CO2

1 Answer
Nam D.
Jan 28, 2018

The elements that are the most reactive on the periodic table should be located to the upper right hand corner of the table - these elements are the most electronegative.

Explanation:

In this case, it would be #"Cl"#, which has the highest electronegativity out of all the following elements & compounds, at #3.16# Pauling units. So, it would be the most reactive as well.

Source:

https://www.angelo.edu/faculty/kboudrea/periodic/trends_electronegativity.htm

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