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8th Grade The Periodic Table

Total questions: 72

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
A "pure" substance that cannot be separated or broken down into simpler substances
a)
Compound
b)
Mixture
c)
Period
d)
Element
2.
Most of these elements are gases and are located on the right side of the periodic table
a)
Metalloids
b)
Compounds
c)
Nonmetals
d)
Metals
3.
A substance composed of two or more elements chemically bonded together.  Examples are H2O and CO2.
a)
Element
b)
Compound
c)
Electron Cloud
d)
Metalloid
4.
This number is  the top number in the box on the periodic table and ALWAYS equals the number of protons
a)
Neutrons
b)
Atomic Mass Number
c)
Group
d)
Atomic Number
5.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
6.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
7.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
8.
A proton is....
a)
A negatively charged subatomic particle
b)
A positively charged subatomic particle
c)
A neutrally charged subatomic particle
d)
The only subatomic particle located in the nucleus
9.
A neutron has a charge of
a)
+2
b)
No charge
c)
-1
d)
+1
10.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
11.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
12.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
13.

How many elements are in the periodic table?

a)

210

b)

118

c)

98

d)

156

14.

The rows found in the periodic table are referred to as

a)

molecules

b)

grids

c)

periods

d)

groups

15.

The central part of an atom is called the

a)

Electron

b)

Neutron

c)

Proton

d)

Nucleus

16.

Mendeleev arranged the periodic table by

a)

decreasing electrons

b)

increasing atomic number

c)

increasing neutrons

d)

decreasing atomic mass

17.

The vertical columns on the periodic table are called

a)

Actinide series

b)

transitional metals

c)

periods

d)

groups or families

18.

The horizontal rows on the periodic table are called

a)

periods

b)

transitional metals

c)

Actinide series

d)

groups or families

19.

How many protons does Bromine have?

a)

167

b)

80 - 35 = 45

c)

35

d)

80

20.

How many electrons does Boron have?

a)

5

b)

11

c)

11 + 5 = 16

d)

42

21.

How many valence electrons does Carbon have?

a)

1

b)

3

c)

4

d)

8

22.

What element can be found at group 14 period 5?

a)

Kr - Krypton

b)

Si - Silicon

c)

Cs - Cesium

d)

Sn - Tin

23.

Is Ca (Calcium) a metal, nonmetal or metalloid?

a)

metal

b)

nonmetal

c)

metalloid

d)

megalloid

24.

Look at the element in Group 2, Period 7. Does this element have properties of both metals and nonmetals?

a)

No it's a metal

b)

Yes it's a metalloid

c)

No it's a non metal

d)

Yes it's a non metal

25.

Which of these elements are metalloids?

a)

S - Sulfur and O - Oxygen

b)

Au - Gold and Ag - Silver

c)

B - Boron and Si - Silicon

d)

Ra - Radium and Xe - Xenom

26.

Which of these shows only properties of metals?

a)

shiny, mostly solid, good conductors of heat and electricity

b)

dull, mostly gases, good insulators

c)

shiny, have characteristics of both metals and nonmetals

d)

dull, good insulators, magnetic

27.

This picture shows an element that is in group 16, period 3. Is it a metal, nonmetal or metalloid?

a)

metal

b)

metalloid

c)

nonmetal

d)

megalloid

28.

Metals are found to the ______________________ of the stairstep line on the periodic table.

a)

left

b)

right

c)

along

d)

all over

29.

Metalloids are found:

a)

all over the periodic table

b)

on the left of the stairstep line

c)

on the right of the stairstep line

d)

on the stairstep line

30.

Nonmetals are found:

a)

to the left of the stairstep line

b)

to the right of the stairstep line

c)

along the stairstep line

d)

all over the periodic table

31.

Which one shows only properties of non metals?

a)

shiny, good conductors of heat and electricity

b)

dull, mostly gases, good insulators

c)

shiny, malleable

d)

dull, ductile, mostly solids

32.

Which term means to hammer into thin sheets?

a)

ductile

b)

luster

c)

brittle

d)

malleable

33.

Which term means to make into wire?

a)

ductile

b)

luster

c)

malleable

d)

brittle

34.

What determines the chemical reactivity of an atom?

a)

protons

b)

valence electrons

c)

electron shells

d)

neutrons

35.

What determines the identity of an atom?

a)

protons

b)

valence electrons

c)

neutrons

d)

atomic mass

36.
Metalloids are atoms that combine properties of both metals and non-metals.  Which characteristics are included with metalloids?
a)
Shiny, ductile, semiconductors
b)
Dull, not malleable, not conductive
c)
Luster, liquid, silver
d)
No luster, not ductile
37.
What is Reactivity?
a)
The characteristics of a substance that can be observed without changing the identity of the substance.
b)
A property making a substance react with certain substances
c)
When a substance combines with another to form a new substance.
d)
I really don't know at all.
38.
Which properties are characteristic of the group 1 metals?
a)
high reactivity and the formation of stable compounds
b)
high reactivity and the formation of unstable compounds
c)
low reactivity and the formation of stable compounds
d)
low reactivity and the formation of unstable compounds
39.
Which is NOT a type of chemical bond?
a)
Ionic Bond
b)
Covalent Bond
c)
Metallic Bond 
d)
None of the above
40.
share electrons, occur between non-metals and non-metals. Form molecules. 
a)
ionic bonds
b)
covalent bonds
c)
metallic bonds
41.
transfer electrons, occur between metals and non-metals. Form crystal lattices. 
a)
ionic bonds
b)
covalent bonds
c)
metallic bonds
42.
metallic bonding allows metals to conduct electricity 
a)
conductivity 
b)
ducticility
c)
malleability 
43.

How many valence electrons does this atom have?

a)

2

b)

5

c)

8

d)

15

44.

How many valence electrons would an atom of lithium have?

(Lithium has 3 protons.)

a)

1

b)

2

c)

3

d)

5

45.

When an atom loses an electron, it becomes a

a)

positive ion

b)

negative ion

c)

neutral ion

d)

neutral atom

46.

Valence electrons are found

a)

in the innermost energy level of an atom

b)

in the middle energy levels of an atom

c)

in the outermost energy levels of an atom

47.

Cations

a)

Gain electrons, has an overall positive charge

b)

Lose electrons, has an overall positive charge

c)

Lose electrons, has an overall negative charge

d)

Gain electrons, has an overall negative charge

48.

How does calcium become an calcium ion?

a)

it loses 2 electrons

b)

it gains 2 electrons

49.

True or False

Atoms can share electrons

a)

True

b)

False

50.

In a covalent bond, electrons are

a)

Gained

b)

Pulled apart

c)

Shared

d)

In the nucleus

51.

Elements have the most similar properties if they are in the same _______?

a)

Periods

b)

Groups

c)

Rows

d)

Blocks

52.

What type of elements does the image show?

a)

Metals

b)

Nonmetals

c)

Gases

d)

Metalloids

53.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

54.
What type of bond is this?
a)
ionic
b)
covalent
55.
This picture shows a...
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
56.
Compounds made from only nonmetals are _________________ compounds.
a)
ionic
b)
covalent
c)
metallic
d)
chemical
57.

H2O has how many covalent bonds?

a)

0

b)

1

c)

2

d)

3

58.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

59.

How many valence electrons does Helium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

60.

How many valence electrons does Nitrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

61.

How many valence electrons does Magnesium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

62.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

63.

How many valence electrons does Potassium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

64.

How many valence electrons does Phosphorus Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

65.

How many valence electrons does Silicon Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

66.

How many valence electrons does Lithium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

67.

How many valence electrons does Boron Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

68.

How many valence electrons does Sodium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

69.

How many valence electrons does Calcium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

70.

How many valence electrons does Argon Have?

a)

4 Valence electron

b)

5 Valence electron

c)

6 Valence electron

d)

7 Valence electron

e)

8 Valence electron

71.

How many valence electrons does Sulfur Have?

a)

4 Valence electron

b)

5 Valence electron

c)

6 Valence electron

d)

7 Valence electron

e)

8 Valence electron

72.

How many valence electrons does Fluorine Have?

a)

4 Valence electron

b)

5 Valence electron

c)

6 Valence electron

d)

7 Valence electron

e)

8 Valence electron

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