Question #ec927

1 Answer
Gaya3 · Stefan V.
Sep 13, 2017

Their distance in the periodic table...and...HCl (most bond polarity).

Explanation:

https://www.precisionlabware.com/content/19-electronegativity-of-the-elements

This table shows that electronegativity increases diagonally...

http://www.drcruzan.com/PeriodicTrends.html

Or more appropriately this one...

http://ericaandchristinagroup13period7.weebly.com/reactivity-and-electronegativity.html

Now, just imagine the Hydrogen to be somewhere near Boron, you can calculate the bond polarity.

Example Question (with real values on Pauling Scale) : -

  1. #N_2# (0) #-># Now way! They are the same atoms...
  2. #BH_3# (0.2) #-># Not Much... ( remember, I told you to imagine the Hydrogen to be somewhere near Boron )
  3. #HCl# (1.0) #-># Yeah... Quite Much...
  4. #CH_4# (0.4) #-># Bit more than #BH_3#....
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