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Chemistry and Energy Review 1

Total questions: 73

Worksheet time: 40mins

Name
Class
Date
1.

Glucose is a sugar represented by the formula, C12H22O11. What is it?

a)

Element

b)

Compound

c)

Mixture

d)

Molecule

2.

What is the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

3.

A collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

4.

This is the positively charged subatomic particle contained in the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

5.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

6.

This is the negatively charged subatomic particle that orbits the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

7.

This an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

a)

Periodic Table of Elements

b)

Atomic Theory

c)

Isotopes

d)

Subatomic Particles

8.

One or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

9.

Found beneath an element's chemical symbol.

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

10.

One of several forms of a single element, which contains the same number of protons, but different numbers of neutrons

a)

isotope

b)

ion

c)

orbital

d)

nucleus

11.

What is the chemical symbol for Gold?

a)

Al

b)

Ag

c)

Ar

d)

Au

12.

What is the chemical symbol for Sodium?

a)

S

b)

So

c)

N

d)

Na

13.

Which of the following is a pure substance?

a)

O2

b)

Al2CO5

c)

C6H12O6

d)

SiO2

14.
How many different elements are in this chemical formula: C2H2ClK3
a)
6
b)
8
c)
2
d)
4
15.

The vertical (up and down) columns in the Periodic Table are called families. They can also be called which of the following?

a)

groups

b)

towers

c)

periods

d)

atomic numbers

16.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
17.
Sodium (Na) is found in period 
a)
3
b)
2
c)
4
d)
1
18.
Sodium (Na) is found in group 
a)
1
b)
2
c)
3
d)
4
19.

The atomic number can also tell you which of the following?

a)

only the number of electrons

b)

only the number of protons

c)

only the number of neutrons

d)

the number of both electrons and protons in an atom.

20.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
21.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth

22.

What is the big group of metals called found in the middle of the Periodic Table?

a)

transition metals

b)

nonmetals

c)

noble gases

d)

halogens

23.

What group number are the halogens?

a)

18

b)

1

c)

2

d)

17

24.

What group number are the noble gases?

a)

17

b)

18

c)

14

d)

15

25.
Which one of these is not a noble gas?
a)
Helium
b)
Radon
c)
Iodine
d)
Krypton
26.
What family is Sodium a part of?
a)
Transition Metals
b)
Halogens
c)
Alkali Metals
d)
Alkaline Earth Metals
27.
What two elements come together to make this substance in the picture?
a)
Oxygen and Carbon
b)
Sodium and Calcium
c)
Sodium and Chlorine
d)
Helium and Nitrogen
28.
All matter is made of .....
a)
energy 
b)
atoms 
c)
air
d)
chemistry
29.

The mass of an atom is found it its _____.

a)

electron cloud

b)

nucleus

c)

atomic number

d)

empty space

30.
Making a mixture results in ___________________ only.
a)
chemical reactions
b)
separate parts
c)
physical changes
d)
two subtances
31.
A mixtures is a combination of two or more____________ in which no new kinds of matter are formed.
a)
 subtances
b)
parts
c)
leaves
d)
pebbles
32.

The air outside is considered a homogeneous mixture.

a)

True

b)

False

33.

What is a change in which a new substance is NOT formed?

a)

physical change

b)

chemical change

c)

color change

d)

physical property

34.

What is a combination of 2 or more substances that keep their identities?

a)

physical property

b)

mixture

c)

physical change

d)

chemical change

35.

What is a mixture in which all the parts are EVENLY mixed?

a)

energy

b)

beaker

c)

solution

d)

salad

36.

Which is NOT an example of a physical change?

a)

wetting paper

b)

burning a match

c)

coloring a picture

d)

mixing food coloring and water

37.

Why is water known as universal solvent?

a)

It is found anywhere.

b)

It gives life to living things.

c)

It covers the greater part of the earth.

d)

It dissolves almost all the substances on Earth.

38.

Are jello packets considered a solute or solvent?

a)

solute

b)

solvent

39.

Is Brass a homogeneous mixture or a heterogeneous mixture?

a)

Heterogeneous

b)

Homogeneous

40.
Compounds are made up of two or more atoms physically combined.
a)
True
b)
False
41.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
42.
Can compounds be found in the periodic table?
a)
Yes
b)
No
43.
How many valence electrons are found in atoms of group 14?
a)
4
b)
3
c)
14
d)
16
44.
Which group has the greatest number of valence electrons?
a)
1
b)
14
c)
18
d)
16
45.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
d)
Electrons in the second shell
46.

All atoms are most stable with (or would "prefer") how many electrons in their valence shell?

a)

1

b)

2

c)

8

d)

18

47.

What groups are the most reactive metals?

a)

2 and 3

b)

1 and 18

c)

1 and 2

d)

16 and 17

48.

What groups are the most reactive non metals?

a)

1 and 2

b)

16 and 17

c)

2 and 17

d)

1 and 16

49.

Why are halogens so reactive?

a)

They want to get rid of their only valance electron

b)

They only need one more electron

c)

They are non reactive, they have a full shell

50.
Which is the lightest alkali metal?
a)
Aluminium
b)
Hydrogen
c)
Lithium
d)
Potassium
51.
What is another name for the elements in group 7?
a)
The Halogens
b)
The Noble gases
c)
The Oxides
d)
The Alkali Metals
52.

As of 2018, how many elements are there?

a)

100

b)

110

c)

115

d)

118

53.

What did Dmitri Medeleev invent?

a)

Children

b)

Periodic Table

c)

Russian currency

d)

Calculator

54.
What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?
a)
He arranged all of the known elements by their atomic number
b)
He realised that there was a pattern of reactivity which repeated every 8 elements
c)
He predicted the existence (and properties) of new elements
d)
He identified the "law of triads" which became the groups
55.
The periodic table is organized by the number of ______ in each element's nucleus
a)
neutrons
b)
protons
c)
electrons
d)
atoms
56.
What property did Menedleev use to organize his first periodic table?
a)
atomic number
b)
atomic mass
c)
alphabetical order
d)
chemical properties
57.
What is the atomic number of this element?
a)
4
b)
80
c)
79
d)
8
58.

What are the three main groups of the periodic table?

a)

groups

b)

metal

c)

nonmetals

d)

metalloids

e)

periods

59.

How well a substance can be hammered into sheets.

a)

Malleability

b)

Conductivity

c)

Luster

d)

Magnetic

60.

How well a substance allows heat or electricity to flow through it.

a)

Malleablility

b)

Conductivity

c)

Luster

d)

Ductile

61.

How well a substance reflects light.

a)

Malleability

b)

Conductivity

c)

Luster

d)

Ductile

62.

any characteristic of matter that you can observe without changing the identity of the substances that make it up

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

63.

a characteristic of matter you observe as it reacts or changes into a different substance

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

64.

the mass per unit volume of a substance

a)

mass

b)

weight

c)

volume

d)

density

65.

the ability of one material to dissolve in another

a)

solubility

b)

boiling point

c)

melting point

d)

state of matter

66.

the temperature at which a solid changes to a liquid

a)

solubility

b)

boiling point

c)

melting point

d)

state of matter

67.

the temperature at which a liquid changes to a gas

a)

solubility

b)

boiling point

c)

melting point

d)

state of matter

68.

the ability to be drawn out or pulled into wires

a)

magnetism

b)

malleability

c)

ductility

d)

electrical conductivity

69.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
70.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
71.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
72.
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
73.
Non-metals are good conductors of heat and electricity. 
a)
TRUE
b)
FALSE

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