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Periodic Trends | Science 9

Total questions: 40

Worksheet time: 41mins

Name
Class
Date
1.

Which element in Period 2 has the greatest atomic radius?

a)

Be

b)

C

c)

Na

d)

Li

2.

Which of the group 13 elements is the largest?

a)

B

b)

Ti

c)

Fr

d)

Ga

3.

Of the halogens, which has the smallest radius?

a)

F

b)

Br

c)

He

d)

At

4.

Which of the metalloids has the smallest atomic radius?

a)

Si

b)

B

c)

Sb

d)

Al

5.

Which of the transition metals in the 5th period is the largest?

a)

Y

b)

Mo

c)

Rb

d)

Xe

6.
Ionization energy is the...
a)
energy needed to remove the outermost electron.
b)
ability of an atom to attract electrons from another atom.
7.
Which element has the smaller atomic radius: potassium (K) or bromine (Br)?
a)
potassium (K)
b)
bromine (Br)
8.
Which element has the greatest ionization energy: Aluminum (Al)    or    Chlorine (Cl)?
a)
Aluminum (Al)
b)
Chlorine (Cl)
9.
Which statement correctly and completely identifies a trend?
a)
Atomic radius decreases across a period and increases down a group.
b)
Electronegativity decreases across a period and decreases down a group.
c)
Ionization energy increases across a period and increases down a group.
d)
Ionic radius increases across a period and increases down a group.
10.
Atomic radius generally increases as we move __________.  
a)
down a group and from right to left across a period 
b)
up a group and from left to right across a period 
c)
down a group and from left to right across a period 
d)
up a group and from right to left across a period 
11.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
12.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)
the atoms have more mass.
b)
the atoms have less mass
c)
the atoms have more protons.
d)
the atoms have less electrons.
13.

Rank the following elements by increasing atomic radius: Carbon, Aluminum, Oxygen, Potassium

a)

Oxygen < Carbon < Aluminum < Potassium

b)

Oxygen < Aluminum < Carbon < Potassium

c)

Oxygen < Potassium < Aluminum < Carbon

d)

Oxygen < Carbon < Potassium < Aluminum

14.

Rank the following elements by increasing atomic radius: Sulfur, Oxygen, Neon, Aluminum

a)

Neon < Sulfur < Aluminum < Oxygen

b)

Neon < Aluminum < Sulfur < Oxygen

c)

Neon < Oxygen < Sulfur < Aluminum

d)

Neon < Aluminum < Oxygen < Sulfur

15.

Which atom has the largest atomic radius?

a)

Al

b)

B

16.

Which atom has the largest atomic radius?

a)

Na

b)

Al

17.

Which atom has the largest atomic radius?

a)

S

b)

O

18.

Which atom has the largest atomic radius?

a)

O

b)

F

19.

Which atom has the largest atomic radius?

a)

Br

b)

Cl

20.

Which atom has the largest atomic radius?

a)

Mg

b)

Ca

21.

Which atom has the largest ionization energy?

a)

Li

b)

Be

22.

Which atom has the largest ionization energy?

a)

Ca

b)

Ba

23.

Which atom has the largest ionization energy?

a)

Na

b)

K

24.

Which atom has the largest ionization energy?

a)

P

b)

Ar

25.

Which atom has the largest ionization energy?

a)

Cl

b)

Si

26.

Which atom has the largest ionization energy?

a)

Li

b)

K

27.
How many valence electrons are in an atom of Ar?
a)
2
b)
8
c)
4
d)
1
28.
How many valence electrons are in an atom of Ba?
a)
2
b)
8
c)
4
d)
1
29.

Cations are...

a)

Positive

b)

Negative

c)

Neutral

30.

Anions are...

a)

Positive

b)

Negative

c)

Neutral

31.

An atom becomes _________ when it gains electrons.

a)

Positive

b)

Negative

c)

Neutral

32.

An atom becomes _______ when it loses electrons.

a)

Positive

b)

Negative

c)

Neutral

33.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
34.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
35.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
36.
Where are the nonmetals located on the periodic table? 
a)
Blue
b)
Red
c)
Green
37.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
38.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
39.
As you move across the periodic table from left to right, the atomic radius decreases.  This is because - 
a)
the number of protons increases, so attraction to electrons increases
b)
the number of energy levels increases
c)
the number of electrons increases
d)
the atomic mass increases
40.
Francium (Fr) has the lowest ionization energy in Group 1 because - 
a)
it has the smallest number of valence electrons
b)
it has the greatest atomic mass
c)
it has the greatest number of protons, so it attracts its electrons the strongest
d)
its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

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