8. For each of the following pairs of atoms, highlight the atom that will attract shared electrons more strongly.
a. Carbon or
Chlorine
b. Rubidium or Bromine
C. lodine or Indium
d. Silver
Sulfur
e. Arsenic
or
Sodium
f. Hydrogen or Selenium
or
To determine the type of bond any two atoms will form, find the difference between the electronegativities
between the two atoms. The diagram below shows what type of bond will form between two atoms based
on the electronegativity difference. Polar covalent bonds can be weak (>0.5 - 1.0) or strong (>1.0-2.0).
Electronegativity difference
Nonpolar
Polas
covalent
covalent
lonic
0
2
3.3
0.5 0.6
9
H2
HI
HF
Bonding between atoms is a continuum.
3.1
NaF
9. Which two atoms in the periodic table above form the most polar bond?
10. Identify 3 pairs of atoms with nonpolar covalent bonds. Calculate the electronegativity values
each pair