Free Printable 8.5 Electronegativity and Polarity

Worksheets

8.5 Electronegativity and Polarity

Total questions: 16

Worksheet time: 16mins

Name

Class

Date

Large differences in electronegativity result in __________ bonding between atoms.

Covalent

Mettalic

Ionic

Hydrogen

Which compound consists of nonpolar molecules?

H₂S

PH₃

AsH₃

SiH₄

Hydrogen has an electronegativity of 2.20, fluorine an electronegativity of 3.98. What sort of bond do they form?

mostly ionic

polar covalent

mostly covalent

nonpolar covalent

Which of these molecules is polar?

a only

b only

a and b

a and c

Which of the following properties does not refer to covalent network solids, like quartz and diamond?

brittle

hard

good conductors of heat

non-conductors of electricity

In this Lewis structure, the symbol above F means...

electrons are being transferred to Fluorine

electrons are less attracted to F than H

electrons are more attracted to F than H

Fluorine has formed a cation

The molecule shown in the diagram can best be classified as a

polar covalent molecule

nonpolar covalent molecule

ionic compound

nonpolar ionic compound

Which of the molecules contains polar covalent bonds but is NOT itself a polar molecule?

III

¯\_(ツ)_/¯

what causes a partial charge on a molecule with 2 atoms? (dipoles)

unequal sharing of electrons

an electronegativity difference between 0.4 and <1.7

electron spends more time around one of the atoms

all of the above

10.

Which of the following shapes has unshared pairs of electrons on the central atom?

Bipyramidal

Bent

Trigonal Planar

Tetrahedral

11.

Which molecule would have this shape?

BF₃

CH₄

PCl₅

CO₂

12.

How many electrons are shared in a triple bond?

6 pairs

13.

Calculating the difference in electronegativity can always help determine_________?

the # of valence electrons

the polarity of a molecule

the type of bond

the geometry of a molecule

14.

This molecule has______bond and is a _________molecule.

non-polar; non-polar

polar, polar

polar,
non-polar

non-polar; polar

15.

What kind of bond do you have: Li and Cl

Non-polar covalent

Polar covalent

ionic

James Bond

16.

What kind of bond do you have: F and Cl