Question #ec927

1 Answer
Sep 13, 2017

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

Explanation:

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

This table shows that electronegativity increases diagonally...

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

Or more appropriately this one...

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