Calculate the electronegativity difference between each pair of atoms.

Question

a.

Si and O

b.
Cl and Br

c.
I and F

d.
N and N

Answer 1

First, you need a specific periodic table with the electronegativity values. Once you have the values of the atoms, you can just simply subtract the values.

 

HERE is one of this period tables: http://ibchem.com/drop/img/electronegativities.gif

 

A. Si & O--> 3.5-1.8= 1.7

B. Cl & Br--> 3.0-2.8= 0.2

C. I & F--> 4.0-2.5= 1.5

D. N & N--> 3.0-3.0= 0