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Worksheets

Physical Science

Total questions: 14

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

For each of the following sets of elements, identify the element expected to be most electronegative.

a)

K

b)

Sc

c)

Ca

2.

For each of the following sets of elements, identify the element expected to be least electronegative.

a)

Br

b)

F

c)

At

3.

Identify the type of bond of the following atoms based on their electronegativity difference.


P ------- Si

a)

Ionic

b)

Polar covalent

c)

Non polar covalent

4.

Identify the type of bond of the following atoms based on their electronegativity difference.


K ----- N

a)

Ionic

b)

Polar covalent

c)

Non polar covalent

5.

Identify the type of bond of the following atoms based on their electronegativity difference.


H ----- F

a)

Ionic

b)

Polar covalent

c)

Non polar covalent

6.

Pb (Lead) would have the same Lewis dot structure as to which molecule below?

a)
b)
c)
d)
7.

Se (Selenium) would have the same Lewis dot structure as to which molecule below?

a)
b)
c)
d)
8.

Bi (Bismuth) would have the same Lewis dot structure as to which molecule below?

a)
b)
c)
d)
9.

What is the chemical formula and name of the molecular structure shown above?

a)

C2H2

b)

C2H4

c)

CH4

10.

Which atom would most likely fit in this lewis structure?

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Flourine

11.

What is the molecular geometry of CO2 (carbon dioxide)?

a)

Bent

b)

Linear

c)

Tetrahedral

d)

Trigonal planar

12.

What is the molecular geometry of BF3.

a)

Linear

b)

Bent

c)

Trigonal Pyramidal

d)

Trigonal Planar

13.

What is the difference between atom and compounds?

a)

Atoms are composed of two or more element.

b)

Atoms are composed of one element only.

c)

Compounds are composed of two or more element.

d)

Compounds are composed of one element only.

14.

Which of the following is an example of an element?

a)

Salt

b)

Water

c)

Iron

d)

Muriatic acid