Question #ec927

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Question #ec927

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Answer 1 · 2017-09-13T07:40:50

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

Explanation:

![https://www.precisionlabware.com/content/19-electronegativity-of-the-elements]( useruploads.socratic.org )

This table shows that electronegativity increases diagonally...

![http://www.drcruzan.com/PeriodicTrends.html]( useruploads.socratic.org )

Or more appropriately this one...

![http://ericaandchristinagroup13period7.weebly.com/http://reactivity-and-electronegativity.html](https://useruploads.socratic.org/fqhG69KSSoe3ZbyKaQkx_111_Electronegativity_Table.jpg)

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

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

$N_{2}$ $N_2$ (0) $\to$ $->$ Now way! They are the same atoms...
$B H_{3}$ $BH_3$ (0.2) $\to$ $->$ Not Much... ( remember, I told you to imagine the Hydrogen to be somewhere near Boron )
$H C l$ $HCl$ (1.0) $\to$ $->$ Yeah... Quite Much...
$C H_{4}$ $CH_4$ (0.4) $\to$ $->$ Bit more than $B H_{3}$ $BH_3$ ....

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Question #ec927

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