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Chemistry

Total questions: 51

Worksheet time: 40mins

Name
Class
Date
1.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

2.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
3.

How many valence electrons does this element have?

a)

20

b)

2

c)

4

d)

1

4.

The horizontal (left to right) rows on the periodic table are known as

a)

periods.

b)

atoms.

c)

groups or families.

d)

valence electrons.

5.

Using the element picture, what is the atomic number?

a)

1

b)

H

c)

Hydrogen

d)

1.00794

6.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
7.

Which of the following elements has the best physical properties to be a good conductor of energy?

a)

Carbon (C)

b)

Chlorine (Cl)

c)

Iron (Fe)

d)

Neon (Ne)

8.

Sodium (Na) is found in period

a)

3

b)

2

c)

4

d)

1

9.

The Alkali Metals are group _____ on the periodic table.

a)

2

b)

6

c)

3

d)

1

10.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
11.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
12.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
13.
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.
14.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
15.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
16.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
17.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
18.

Which elements are colored red?

a)

nonmetals

b)

metals

c)

metalloids

19.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
20.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
21.
Which is an electron?
a)
A
b)
B
c)
C
22.
What does 12.011 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
23.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
24.

______________ refers to the way a metal can be hammered or rolled into thin sheets.

a)

Luster

b)

Malleable

c)

Metalloids

d)

Solid

25.

Copper is a common metal. Which of the following properties does this metal most likely have?

a)

High conductivity, high malleability, and low luster

b)

Low conductivity, low malleability, and low luster

c)

High conductivity, high malleability, and high luster

d)

Low conductivity, high malleability, and high luster

26.

Which family on the periodic table is very stable due to the fact that they have a full outer shell

a)

Noble gases

b)

Alkali metals

c)

Halogens

d)

Alkaline earth metals

e)

Rare earth elements

27.

Which statement best describes the relationship between Helium, Neon, Argon and Xenon?

a)

They are all in the same period

b)

They are all in the same group

c)

They are all liquids

d)

They are all man-made

28.

Each row (Horizontal) is called _______

a)

Column

b)

Family

c)

Semi-colon

d)

Period

29.

Each column (Vertical) is called

a)

Period

b)

Column

c)

Group

d)

Cohort

30.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

31.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

32.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

33.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

34.

2 or more different elements that are bonded together is called...

a)

A. element

b)

B. compound

c)

C. mixture

d)

D. solution

35.
A substance that contains only one type of atom is a(n)
a)
compound
b)
element
c)
heterogeneous mixture
d)
homogeneous mixture
36.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
37.

What is CO2 and example of?

a)

element

b)

molecule

c)

compound

38.
Which of the following lists only elements?
a)
H2O + OH, MgCl2
b)
H2O, KF, Ne
c)
KCl, Ag, Au
d)
K, Cl, N
39.

Jay combines water, sugar, and lemon juice to form lemonade. What type of substance was made?

a)

Element

b)

Molecule

c)

Mixture

40.
Which of the following is an example of a heterogenous mixture?
a)
soap
b)
a salad with lettuce, olives, and tomatoes
c)
cup of coffee
d)
water
41.
This type of mixture looks the same throughout. 
a)
Homogenous
b)
Heterogeneous
42.

This picture is a model of...

a)

an element

b)

a compound

c)

a homogenious mixture

d)

a heterogeneous mixture.

43.

This image is a model of...

a)

an element

b)

a compound

c)

a homogenous mixture

d)

a heterogeneous mixture

44.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
45.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
46.

Which of the following is a example of physical change ?

a)

burning of wood

b)

photosynthesis

c)

melting of ice-cream

d)

ripening of fruit

47.

Is milk going sour a physical or chemical change?

a)

Physical

b)

Chemical

48.
An example of a physical property would be?
a)
Rust on a nail
b)
Salt dissolved in water.
c)
Wood burning
d)
An egg frying
49.

A physical change...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

50.

The image below shows a chemical reaction taking place. What evidence proves there was a chemical reaction?

a)

Light produced

b)

Color change

c)

Formation of gas and bubbles

d)

Precipitate formed

51.

In the process of burning a piece of wood, a chemical reaction takes place. What evidence best justifies that a chemical change took place?

a)

A new substance is produced.

b)

The shape of the wood changed.

c)

The size of the wood changed.

d)

The state of the wood changed from solid to gas.

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