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Worksheets

Category 1: Matter & Energy

Total questions: 50

Worksheet time: 2hrs 41mins

Name
Class
Date
1.

Open your notebook and have your Periodic Table out. Press START when you are ready!

a)

START

b)

BLART

c)

SMART

d)

APART

2.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
3.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
4.
Oxygen’s atomic number is 8. This means that an oxygen atom must have
a)
8 electron shells
b)
8 protons and 8 electrons
c)
8 neutrons
d)
a mass number of 8
5.
 What is the mass number of this element?
a)
5
b)
27
c)
32
d)
59
6.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
7.
What number indicates a proton?
a)
1
b)
2
c)
3
d)
4
8.
What characteristic of an atom is determined by the number of protons?
a)
mass
b)
reactivity
c)
identity
d)
if the atom is an isotope
9.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
10.
What are valence electrons?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
11.
What does the 6 represent?
a)
Atomic mass
b)
Atomic Number
c)
Chemical Symbol
d)
Element Name
12.
What element is represented by this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
13.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
14.

How many valence electrons in an atom of Carbon (C)?

a)

4

b)

6

c)

8

d)

10

15.

Which group of elements has a full outermost shell?

a)

Group 2

b)

Group 7

c)

Group 1

d)

Group 18

16.

Which is the most reactive group of elements?

a)

Noble Gases

b)

Group 1

c)

Transition Metals

d)

Group 5

17.
Each vertical column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
18.

Which element has 31 protons ?

a)

Gallium

b)

Germanium

c)

Gadolinium

d)

Polonium

19.

Which element has 5 more protons than Oxygen (O)?

a)

Lithium

b)

Aluminum

c)

Chlorine

d)

Silicon

20.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
21.
The elements in a column of the periodic table... (groups)
a)
have similar atomic numbers
b)
start with the same letter
c)
have similar chemical properties
d)
have the same number of electron shells
22.
Each horizontal row in the periodic table is called a 
a)
group
b)
period
c)
cluster
d)
unit
23.

Which element is in the period 3 and group 15?

a)

Fe

b)

P

c)

Al

d)

B

24.
_________ are elements that are good conductors of electric current and heat
a)
noble gasses
b)
metalloids
c)
nonmetals
d)
metals
25.
Elements with properties that fall between those of metals and nonmetals
a)
transition metals
b)
noble gasses
c)
metalloids
d)
all of the above
26.

Which of the following could indicate a chemical change?

a)

an unexpected color change

b)

a new substance has formed

c)

a gas is produced

d)

all of the above

27.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
28.
A copper penny turning greenish after a few years is an example of...
a)
Chemical Change
b)
Physical Change
29.

Melting butter for your popcorn is an example of a

a)

chemical reaction

b)

physical change

30.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
31.

Is cooking an egg a physical or chemical change?

a)

Physical change

b)

Chemical change

32.

In a ___________change, a new substance is formed.

a)

Physical

b)

Chemical

33.

Cutting and hammering wood together to build a house is an example of a

a)

chemical reaction

b)

physical change

34.

Adding baking soda and vinegar together and it fizzes and creates carbon dioxide.

a)

Chemical reaction

b)

Physical change

35.
The one or two letters used to represent elements 
a)
Yield sign
b)
Coefficient
c)
Symbol
d)
Subscript
36.

How many total atoms are in the compound 6NaCl?

a)

1

b)

12

c)

6

d)

4

37.

Which of the following is an element?

a)

FeO

b)

O

c)

NaOH

d)

SiO2

38.
Which of the following is a compound?
a)
Ca
b)
Pb
c)
H2
d)
MgBr
39.
If there is no subscript, there is ______ atom(s) of that element.
a)
0
b)
2
c)
only 1
d)
1 million
40.
How many elements are in the compound C2H8O ?
a)
2
b)
1
c)
3
d)
0
41.
How many molecules are in 10MgCl2?
a)
10
b)
2
c)
30
d)
13
42.
The red numbers in the image below represent ________
a)
subscripts (number of atoms)
b)
coefficients (number of groups)
c)
elements
d)
organic compounds
43.

The blue numbers in the image below represent ________

a)

number of elements

b)

coefficients (number of groups)

c)

subscripts (number of atoms)

d)

none of the answers are correct

44.
How many elements are present in this compound?
Mg2As3COHNi2
a)
2
b)
4
c)
6
d)
10
45.
How many total atoms are in the compound H2SO4?
a)
6
b)
5
c)
7
d)
3
46.

Which is the correct formula for:

three hydrogen atoms

one sulfur atom

four oxygen atoms

a)

H3SO4

b)

HSO4

c)

H4S3O

d)

H2O

47.
How many total atoms are in the compound C2H8O ?
a)
11
b)
2
c)
8
d)
1
48.
How many Aluminum are in Al2O3?
a)
3
b)
2
c)
5
49.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
50.
In this compound structure of alcohol, how many Hydrogen atoms are there?
a)
2
b)
4
c)
6
d)
8