WorksheetsPolar Molecules
Total questions: 10
Worksheet time: 6mins
A covalent bond is a chemical bond where two atoms share__________.
protons
neutrons
valence electrons
the same group on the periodic table
Covalent bonds form between 2 or more atoms of ______________.
metals
metaloids
nonmetals
I don't know
A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons is a _______________.
nonpolar molecule
polar molecule
ionic compound
metalic compound
Polar molecules have
no charges.
slight positive and negative charges on opposite ends of the molecules.
only positive charges.
either positive or negative charges, but not both.
Phosphorus has an electronegativity value of 2.1. Chlorine's electronegativity value is 3.0. What type of bond will these two elements form?
ionic
nonpolar covalent
polar covalent
metallic
Use your knowledge and electronegativity sheet to predict what the following compound is classified as.
non-polar covalent
polar covalent
ionic
metallic
Which atom has the LOWER electronegativity?
Na
Li
Calculate ΔEN for Pb-S
1.1
-0.6
0.6
4.4
Calculate ΔEN for Na-Br
1.9
0.9
2.8
1.0
