What kind of bond will form between hydrogen and boron? and Bond Bridge - 6/19/11 - Kansas City

What kind of bond will form between hydrogen and boron?

I know it'll be some sort of covalent bond..? But I need a more specific answer (nonpolar covalent, polar covalent, or nonpolar covalent)

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alssoooo what kind of bond will form between potassium and bromine?


Bond best answer:

Answer by pisgahchemist
Look at the electronegativity difference.

Boron ... EN = 2.04
Hydrogen .... EN = 2.20
ΔEN = 0.16

An electronegativity difference of 0.16 by some standards doesn't even rank as being "polar", so you might say the bond is "nonpolar covalent." The bond has a percent covalent character of over 99%.

K and Br? Again, look at the electronegativities.

K ... EN = 0.82
Br ... EN = 2.96
ΔEN = 2.14

A ΔEN of 2.14 translates to a percent ionic character of 68%. Also keep in mind that there is no "single" K-Br bond in solid potassium bromide. Each potassium atom is bonded with it six nearest Br neighbors and vice versa via bonds with relatively high ionic character.

Bond

Bond Bridge - 6/19/11 - Kansas City


Image by CoolValley
The Bond Bridge was finshed last year and the Paseo Bridge, that sat next to it is almost totally gone

The Bond Bridge is the Missouri River crossing in K.C. for highways I-35 and I-29. They merge at the bridge and seperate about a mile north and go their own ways.

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