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Grade 8 Science Review

Total questions: 94

Worksheet time: 59mins

Name
Class
Date
1.

What are the three main groups of the periodic table?

a)

groups

b)

metal

c)

nonmetals

d)

metalloids

e)

periods

2.

What are the vertical columns on the periodic called?

a)

groups

b)

periods

c)

nonmetals

d)

metals

e)

metalloids

3.

What do the vertical columns on the periodic table tell us?

a)

The number of orbitals

b)

The number of valence electrons (electrons on the outer most shell)

4.

What are the horizontal rows on the periodic table called?

a)

periods

b)

groups

c)

metals

d)

nonmetals

e)

metalloids

5.

What do the horizontal rows on the periodic table tell us?

a)

The number of orbitals

b)

The number of valence electrons (the electrons on the outer most shell)

6.

What does the number of proton tell us?

a)

electrons

b)

atomic number

c)

atomic mass

d)

neutrons

7.

How do you calculate the number of neutrons? *

a)

Mass = Atomic number - Neutrons

b)

Mass - Atomic number = Neutrons

c)

Atomic number = Neutrons

8.

What is the name of the element? (Periodic table will be needed)

a)

sodium

b)

magnesium

c)

vanadium

9.

What group and period does this element belong in? *

a)

period 1 and group 3

b)

period 3 and group 1

c)

period 2 and group 3

d)

period 3 and group 2

10.

How many valence electrons does the element have?

a)

1

b)

2

c)

3

d)

4

11.

How many protons and electrons does nickel have?

a)

28

b)

58.69

12.

What is the atomic mass?

a)

58.693

b)

28

13.

How many orbitals does Nickel have?

a)

3

b)

4

c)

5

d)

10

14.

Who discovered the nucleus?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

15.

Who proposed a model with electrons moving in specific layers?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

16.

Who discovered the electrons?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

17.

This element has two valence electrons and two energy levels?

a)

Beryllium (Be)

b)

Lithium (Li)

c)

Zinc (Zn)

18.

How many valence electrons and energy levels does (Pb) lead have?

a)

4 valence electrons and 6 energy levels (orbitals)

b)

6 valence electrons and 4 energy levels (orbitals)

c)

5 valence electrons and 5 energy levels (orbitals)

d)

5 valence electrons and 10 energy levels (orbitals)

19.

atomic number

a)

gas at room temperature, low boiling point

b)

a subatomic particle that has a negative charge

c)

number or protons and neutrons

d)

the number of protons in the nucleus of an atom

20.

period

a)

Elements that occur in vertical columns on the periodic table.

b)

A horizontal row of elements in the periodic table

c)

Found in group two of the periodic table; highly reactive

d)

A subatomic particle that has a negative charge

21.

found in group one of the periodic table; highly reactive

a)

Non-metals

b)

Transition Metals (Groups 3-12)

c)

alkali metals (group 1)

d)

metalloids (semimetals)

22.

neutron

a)

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

b)

not able to conduct heat or electricity, little to no metallic luster

c)

A subatomic particle that has a negative charge

d)

A small particle in the nucleus of the atom, with no electrical charge

23.

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

a)

Proton

b)

elecrtron

c)

groups

d)

neutrons

24.

A subatomic particle that has a negative charge

a)

nobles gases

b)

protons

c)

electrons

d)

neutrons

25.

not able to conduct heat or electricity, little to no metallic luster

a)

Non-metals

b)

noble gases

c)

atomic mass

d)

Neutron

26.

Found in group two of the periodic table; highly reactive

a)

period

b)

Alkali Earth Metals (Group 2)

c)

metalloids (semimetals)

d)

alkali metals (group 1)

27.

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds

a)

alkali metals (group 1)

b)

Halogens (Group 17)

c)

atomic number

d)

valence electrons

28.

Halogens (Group 17)

a)

gas at room temperature, low boiling point.

b)

most reactive nonmetals

c)

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds

d)

Number of protons and neutrons

29.

Number of protons and neutrons

a)

atomic number

b)

atomic mass

c)

noble gases

d)

Non-metals

30.

Elements that occur in vertical columns on the periodic table.

a)

Neutron

b)

metalloids (semimetals)

c)

groups

d)

Proton

31.

good thermal conductors, shiny, electric conductors, higher density and melting points than group

a)

alkali metals (group 1)

b)

Transition Metals (Groups 3-12)

c)

Non-metals

d)

metalloids (semimetals)

32.

gas at room temperature, low boiling point.

a)

atomic mass

b)

atomic number

c)

Non-metals

d)

noble gases

33.

metalloids (semimetals)

a)

Elements that occur in vertical columns on the periodic table.

b)

an element that has both metallic and nonmetallic properties

c)

not able to conduct heat or electricity, little to no metallic luster

d)

found in group one of the periodic table; highly reactive

34.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
35.
What subatomic particle is electrically neutral (no charge)?
a)
Proton
b)
Ion
c)
Neutron
d)
Electron
36.
What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?
a)
22
b)
11
c)
34
d)
23
37.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
38.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
39.
Protons and Electrons balance the charge of an atom.
a)
True
b)
False
40.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
41.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
42.
The smallest particle of any type of matter is known by which of the following terms?
a)
Element
b)
Compound
c)
Atom
d)
Chemical
43.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
44.
What subatomic particle is positively charged and is located inside of the nucleus?
a)
Proton
b)
Neutron
c)
Electron
d)
Ion
45.
Which one of these is NOT located in the element square on the Periodic Table?
a)
Atomic Number
b)
Atomic Mass
c)
Room Temperature
d)
Chemical Symbol
46.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
47.
Electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
48.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
49.
How many neutron are in the atom "K"?
a)
7
b)
2
c)
39
d)
20
50.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
51.
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
52.
The charge of a neutron in an atom.
a)
positive
b)
negative
c)
neutral
d)
+1
53.

What type of charge does a proton have?

a)

negative

b)

postive

c)

no charge/neutral

54.

What type of charge does an electron have?

a)

positive

b)

no charge/neutral

c)

negative

55.

What is the center of the atom called?

a)

nucleus

b)

electron cloud

c)

energy level

d)

neutron

56.

What two sub-atomic particles belong in the nucleus of an atom?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

57.

How do you find the atomic number?

a)

by the number of electrons

b)

by the number of protons

c)

by the number of neutrons

58.

The number of neutrons in an atom =

a)

protons - neutrons

b)

mass number - protons

c)

protons - neutrons

d)

mass number - electrons

59.

What type of charge does a neutron have?

a)

negative

b)

positive

c)

no charge/neutral

60.

Where are electrons located in an element?

a)

nucleus

b)

energy levels

61.

The number of electrons in an atom is found by the

a)

protons

b)

atomic number

c)

protons and atomic number

d)

none

62.

What is the atomic number of this Carbon atom

a)

6

b)

8

c)

14

d)

12

63.

What is the mass number of this Carbon atom?

a)

8

b)

12

c)

6

d)

15

64.

What is the element symbol?

a)

Argon

b)

Ar

c)

18

d)

39.948

65.

What is the element name?

a)

Argon

b)

Neon

c)

18

d)

Ar

66.

The number 18 represents the

a)

Atomic number

b)

Neutrons

c)

Element Name

d)

Element symbol

67.

The mass number of an atom =

a)

protons + neutrons

b)

protons - neutrons

c)

electrons - neutrons

d)

neutrons + electrons

68.

What type of charge does a proton have?

a)

negative

b)

postive

c)

no charge/neutral

69.

What type of charge does an electron have?

a)

positive

b)

no charge/neutral

c)

negative

70.

What is the center of the atom called?

a)

nucleus

b)

electron cloud

c)

energy level

d)

neutron

71.

What two sub-atomic particles belong in the nucleus of an atom?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

72.

How do you find the atomic number?

a)

by the number of electrons

b)

by the number of protons

c)

by the number of neutrons

73.

The number of neutrons in an atom =

a)

protons - neutrons

b)

mass number - protons

c)

protons - neutrons

d)

mass number - electrons

74.

What type of charge does a neutron have?

a)

negative

b)

positive

c)

no charge/neutral

75.

Where are electrons located in an element?

a)

nucleus

b)

energy levels

76.

The number of electrons in an atom is found by the

a)

protons

b)

atomic number

c)

protons and atomic number

d)

none

77.

What is the atomic number of this Carbon atom

a)

6

b)

8

c)

14

d)

12

78.

What is the mass number of this Carbon atom?

a)

8

b)

12

c)

6

d)

15

79.

What is the element symbol?

a)

Argon

b)

Ar

c)

18

d)

39.948

80.

What is the element name?

a)

Argon

b)

Neon

c)

18

d)

Ar

81.

The number 18 represents the

a)

Atomic number

b)

Neutrons

c)

Element Name

d)

Element symbol

82.

The mass number of an atom =

a)

protons + neutrons

b)

protons - neutrons

c)

electrons - neutrons

d)

neutrons + electrons

83.
This subatomic particle always identifies the identity (name) of the element
a)
Neutron
b)
Electron
c)
Proton
d)
amu
84.
The chart that shows the arrangement of elements in order by their atomic number
a)
Electron Cloud
b)
Periodic Table
c)
amu
d)
Atomic Mass
85.
____________ is anything that has mass and takes up space.
a)
matter
b)
compound
c)
particle
d)
subatomic
86.
All mater is composed of __________.
a)
compounds
b)
atoms
c)
water
d)
H2O
87.
All atoms have a ___________ in the center.
a)
electron
b)
cloud
c)
nucleus
d)
particle
88.
The nucleus of the atom has  the 
___________ and ___________ in it.
a)
protons and neutrons
b)
electrons and neutrons
c)
protons and electrons
89.
A proton has a ___________ charge.
a)
positive
b)
negative
c)
neutral
90.
An electron has a ___________ charge.
a)
positive
b)
negative
c)
neutral
91.
Protons, neutrons, and electrons are called ____________ particles.
a)
atomic
b)
subatomic
c)
nucleus
92.

Negative charge, found orbiting nucleus, mass is almost zero

a)

proton

b)

neutron

c)

electron

d)

ion

93.

What are the building blocks that make up all matter?

a)

mixtures

b)

atoms

c)

compounds

d)

neutrons

94.

For a neutral atom, which 2 subatomic particles must be equal in number?

a)

protons and neutrons

b)

protons and electrons

c)

electrons and neutrons

d)

electrons and ions

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