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Electronegativity / Molecule Models

Total questions: 40

Worksheet time: 36mins

Name
Class
Date
1.

Which element has a higher electronegativity value?

a)

Niobium

b)

Tin

c)

Cadmium

d)

Iodine

2.

Which element has a lower electronegativity value?

a)

Calcium

b)

Barium

3.

Electronegativity (a)   as you go down a group.

4.

Electronegativity trends are the same as:

a)

Atomic radius trends

b)

Ionization energy trends

c)

Both of these

d)

None of these

5.

What does electronegativity do as you go across a period?

a)

decrease

b)

no pattern

c)

stay the same

d)

increase

6.

As you move across a period, the outer electrons are ________ to the nucleus, so the nucleus of the atom is ________ to attract electrons in a bond.

a)

closer, more able

b)

closer, less able

c)

further, less able

d)

further, more able

7.

Do noble gases have electronegativity values?

a)

yes

b)

no

8.

Why does electronegativity decrease as you go down a group?

a)

As you go down a group, the outer electrons are further away from the nucleus

b)

As you go down a group, the nucleus is less able to attract electrons in a bond

c)

Both of these

d)

None of these

9.

Which is the correct order of electronegativity from lowest to highest?

a)

Zinc, Nickel, Iron, Scandium

b)

Iron, Nickel, Zinc, Scandium

c)

Scandium, Zinc, Iron, Nickel,

d)

Scandium, Iron, Zinc, Nickel

10.

Electronegativity is the ability of an atom to attract electrons in a physical bond.

a)

false

b)

true

11.

Match the following

a)

A material used in making Electrical wires

1.

Metallic Bond

b)

A material used to make insulation wrapped around transmittion lines

2.

Covalent Bond

c)

A material that is dissolved in large quantities in sea water

3.

Ionic Bond

12.

Atoms form bonds in such a way as to produce the electron confguration of ​ (a)  

Choose from the below words
Noble Gases
Halogen
Alkaline Earth Metal
Ionic Compound
13.

In General, the melting point of ionic compounds tend to be ​ ​ (a)  

Choose from the below words
High
Low
Weak
14.

In general, the water solutions of ionic compounds are able to ​ (a)   Electrical Current

Choose from the below words
Conduct
Insulate
Stop
15.

Cesium is an example of an element with a ​ (a)   Electronegativity

Choose from the below words
Low
High
Moderate
16.

The sheilding effect would be ​ (a)   in an atom of Chlorine than in an atom of Flourine.

Choose from the below words
Greater
Less
Same
17.

A bond formed between two atoms with an electronegativity difference of 0.7 is likely to be a ​ (a)   covalent Bond

Choose from the below words
Polar
Nonpolar
Ionic
18.

Electronegativity differences that result in a polar covalent bond range between 0.5 and ​ ​ (a)   .

Choose from the below words
1.9
4.0
2.0
0
2.5
19.

Conductivity in metals can be explained by what is called a ​ (a)  

Choose from the below words
Sea of electrons
Polar Bond
Ionic Bond
Nonpolar bond
20.

​ (a)   diatomic molecules are linear.

Choose from the below words
All
Some
No
21.

A dipole interaction takes place when the positive end of one polar molecule attracts to the ​ (a)   end of a second polar molecule

Choose from the below words
Negative
Positive
Neutral
22.

In general, the boiling of a polar liquid is likely to be ​ (a)   than the boiling point of a nonpolar liquid of about the same mass

Choose from the below words
Higher
Lower
the same
23.

In General, the vast majority of ionic compounds are ​ (a)   at room temperature.

Choose from the below words
Solids
Liquids
Gases
Plasmas
24.

Use your electronegativities chart to find the difference between each element and predict what type of bond.

Calcium and Fluorine is

(a)  

25.

Use your electronegativities chart to find the difference between each element and predict what type of bond.

Carbon and Silicon

(a)  

26.

Use your electronegativities chart to find the difference between each element and predict what type of bond.

Beryllium and Sulfur

(a)  

27.

Use your electronegativities chart to find the difference between each element and predict what type of bond.

Hydrogen and Germanium

(a)  

28.

Use your electronegativities chart to find the difference between each element and predict what type of bond.

Zinc and Bromine

(a)  

29.
What molecular shape is the structure shown here? (NH4+)
a)
linear
b)
trigonal planar
c)
tetrahedral
d)
trigonal pyramidal
30.
Who could this be?
a)
H2O
b)
NH3
c)
CO2
d)
CH4
31.

What molecular geometry is the structure shown here? (H2O)

a)

tetrahedral

b)

trigonal planar

c)

bent

d)

trigonal pyramidal

32.
 A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
33.
Which of the following shapes has unshared pairs of electrons on the central atom? 
a)
Bipyramidal
b)
Bent
c)
Trigonal Planar
d)
Tetrahedral
34.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

polar covalent

b)

nonpolar covalent

c)

ionic

d)

metallic

35.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

non-polar covalent

b)

polar covalent

c)

ionic

d)

metallic

36.

A diatomic molecule like O2 is always _____ because electrons are shared _____

a)

nonpolar; unequally

b)

polar; equally

c)

nonpolar; equally

d)

polar; unequally

37.
Which of the following is the correct Lewis structure for water?
a)
A
b)
B
c)
C
38.
How many electrons are represented by a single straight line in a Lewis structure?
a)
1
b)
2
c)
4
d)
6
39.

When you have Br-Br, what is the polarity?

a)

Polar

b)

nonpolar

c)

Ionic

40.

Partial charges are present in which type of bond?

a)

Ionic

b)

Nonpolar Covalent

c)

Polar Covalent

d)

Both Polar Covalent and Ionic