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Elements, Compounds, Mixtures with Periodic Table

Total questions: 52

Worksheet time: 55mins

Name
Class
Date
1.
How many elements are represented in the compound He3NC5
a)
1
b)
2
c)
3
d)
4
2.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

3.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
4.

Propane is a....

a)

Element

b)

Compound

c)

Mixture

5.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of two elements
6.
What is CO2 and example of?
a)
element
b)
mixture
c)
compound
7.

In this diagram, X represents...

a)

A compound

b)

A mixture

c)

An atom

d)

An element

8.

In this diagram, Y represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture

9.

Which example is a compound?

a)

N2

b)

O2

c)

Cu

d)

H2O2

10.

Examples are diamonds (C) and Uranium (U)

a)

elements

b)

mixtures

c)

compounds

11.

diagram "a" is an example of a(n)

a)

element

b)

compound

c)

mixture

12.

diagram "b" is an example of a(n)

a)

element

b)

compound

c)

mixture

13.

diagram "d" is an example of a(n)

a)

element

b)

compound

c)

mixture

14.

This picture is a model of...

a)

an element

b)

a compound

c)

a homogenious mixture

d)

a heterogeneous mixture.

15.

The image below is an example of

a)

a homogeneous mixture

b)

a compound

c)

a heterogeneous mixture

d)

an element

16.

The image below is an example of

a)

an atom

b)

a molecule

c)

a homogeneous mixture

d)

a heterogeneous mixture

17.

Which of the following explains why saltwater is considered a mixture?

a)

It is composed of one element.

b)

It is composed of one compound.

c)

It is composed of two or more substances and has new chemical properties.

d)

It is composed of two or more substances and retains their own chemical properties.

18.

Symbol for an element can be found on the

a)

Periodic Table

b)

Picnic Table

c)

Mixture Table

19.

A pure substance that cannot be broken down into any other substance.

a)

Elements

b)

Compounds

c)

Mixtures

20.

A(n) ______________ is formed when two or more elements chemically combine.

a)

Compound

b)

Element

c)

Mixture

21.

Chex mix is a

a)

Mixture

b)

Compound

c)

Element

22.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
23.

What is this table

a)

Elemental Table of Periods

b)

Atomic Table of Atoms

c)

Periodic Table of Elements

24.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
25.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
26.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
27.
This class of elements are sometimes called "semiconductors."
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Groups
28.
These are found on the Periodic Table.
a)
Compounds
b)
Elements
c)
Mixtures
29.

This group of elements have properties that are opposite those of metals. ______________________

a)

luster

b)

nonmetals

c)

metalloids

d)

metals

30.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
31.

The substances in this mixture DO NOT blend smoothly throughout, and the individual substances that compose the mixture can be detected or seen.

a)

Homogeneous mixture

b)

Heterogeneous mixture

c)

Pure substance

d)

Suspension

32.

Solutions are ___________ mixtures.

a)

Solid

b)

Homogenous

c)

Heterogeneous

d)

Gas

33.
What is a homogeneous mixture?
a)
a mixture that is the same throughout.
b)
a mixture that is made up of one type of atom.
c)
a mixture that is made up of one type of compound
d)
a mixture that cannot be separated through physical changes
34.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
35.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
36.
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
37.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
38.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
39.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
40.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
41.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
42.

Name this group: These metals contain familiar metals such as gold, iron, and copper.

a)
b)
c)
d)
43.

Which of the following could be properties of nonmetals?

a)

Poor electrical conductivity

b)

Poor thermal conductivity

c)

Dullness

d)

Brittleness

44.

How many groups or families are on the periodic table?

a)

18

b)

20

c)

7

d)

9

45.

How many periods are on the periodic table?

a)

7

b)

18

c)

9

d)

20

46.

Why is air not found on the Periodic Table of Elements?

a)

Air is a compound.

b)

Air is a mixture of gases, nitrogen, oxygen, carbon dioxide, & other trace gases.

47.
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 
48.
What part of the atom is the arrow pointing to?
a)
nucleus
b)
proton
c)
electron shell
d)
electron
49.

The three subatomic particles are

a)

proton, neutron, electron

b)

proton, nucleus, electron

c)

protein, neutron, electricity

d)

proton, neutral, electives

50.

Electrons are

a)

negative

b)

positive

c)

neutral

51.

Protons are

a)

negative

b)

positive

c)

neutral

52.

Neutrons are

a)

negative

b)

positive

c)

neutral

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