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SC ATOMS AND ELEMENTS

Total questions: 137

Worksheet time: 1hrs 9mins

Name
Class
Date
1.

all matter is made of what 

a)

energy

b)

electrons

c)

compounds

d)

atoms

2.

The positive particles of an atom are 

a)

electron

b)

neutron

c)

positrions

d)

protons

3.

the central region of an atom where its neutrons and protons are is its 

a)

nucleus

b)

electron clouds

c)

core

d)

centre

4.

an atom with atomic number 6 would have how many protons 

a)

6

b)

3

c)

12

d)

can't be determined

5.

Particles in an atom that are neutral and have no charge are 

a)

negratons

b)

electrons

c)

neutrons

d)

protons

6.

What is the number of protons that the element in this image contain?

a)

14

b)

15

c)

7

d)

18

7.

What is the atomic mass of "F"

a)

9

b)

17

c)

18

d)

19

8.

What is the atomic number for an element with three protons?

a)

2

b)

3

c)

1

d)

6

9.

A particle that moves around the nucleus is a(n)...

a)

proton

b)

electron

c)

neutron

d)

quark

10.

In the modern periodic table elements are arranged by:

a)

atomic mass

b)

valence electrons

c)

atomic number

d)

number of isotopes

11.

What does the 1.00794 stand for?

a)

Hydrogen

b)

atomic mass

c)

atomic number

d)

atomis explossion

12.

Where are electrons of an atom found?

a)


Nucleus

b)

Some are in the nucleus and some in the electron cloud.

c)

They are moving everywhere.

d)

Electron Cloud

13.

Two atoms of the same element but with different mass numbers are called________

a)

electrons

b)

variables

c)

isotapes

d)

electron cloud

14.

What is the chemical symbol for the element hydrogen

a)

H

b)

h

c)

He

d)

he

15.

What is the chemical symbol for the element hydrogen

a)

ca

b)

C

c)

co2

d)

Cd

16.

What is the chemical symbol for the element copper?

a)

co

b)

Cu

c)

c

d)

cu

17.

What is the chemical symbol for the element Nitrogen

a)

Ni

b)

No

c)

Nb

d)

N

18.

What is the chemical symbol for the element oxygen


a)

O

b)

ox

c)

Oxy

d)

Oy

19.

The smallest part of an element is


a)

proton

b)

compound

c)

atom

d)

mixture

20.

The smallest part of an element is


a)

water

b)

light bulb

c)

salad mixture

d)

gold bar

21.

Examples are milk and gasoline

a)

elements

b)

compound

c)

mixtures

22.

What is a mixture?

a)

elements chemically combined

b)

composed of one atom only

c)

a combination of different substances

d)

it is made of chemical

23.

Is salt (NaCI) a compound or a element

a)

compound

b)

element

24.

Which of the following selections are the different types of mixtures?

a)

heterogenous, homogenous

b)

metal, nonmetal

c)

acid, base

d)

element, compound

25.

Which of the following lists only elements?


a)


H2O + OH, MgCl2

b)

KCl, Ag, Au

c)

H2O, KF, Ne

d)


K, Cl, N

26.

Elements are made of 


a)

Many types of atoms 

b)

One type of Atom 

c)

the Periodic Table

d)

Molecules 

27.

Molecules are 

a)

2 atoms bound together 

b)

2 or more atoms mixed together

c)

2 elements bound together 

d)

2 or more atoms bound together 

28.

What is gold?

a)

element

b)

mixture

c)

compound

29.

What is krypton?

a)

element

b)

mixture

c)

compound

30.

What is water?

a)

element

b)

mixture

c)

compound

31.

Which one can be found on the periodic table?


a)

compound

b)

element

32.

What is the term for combining 2 or more DIFFERENT atoms together?

a)

atoms

b)

molecules

c)

compounds

d)

elements

33.

What is the picture displayed?

a)

atoms

b)

molecules

c)

compound

d)

element

34.

What is the picture displayed?

a)

atom

b)

molecule

c)

element

d)

compound

35.

This picture represents which of the following?

a)

element

b)

mixture

c)

compound

36.

This picture represents which of the following?

a)

element

b)

mixture

c)

compound

37.

What is the tiniest particle in the entire universe?

a)

cells

b)

atoms

c)

gases

d)

liquids

38.

What is the name of the compound with the formula NaCl?

a)


sodium chloride

b)

monosodium monochloride

c)

sodium chlorate

d)

chlorine sodiate

39.

K20 - name?

a)


potassium dioxide

b)

potassium oxygen

c)

potassium oxide

d)

dipotassium dioxide

40.

HBr - name?


a)

hydrogen bromide

b)

bromo hydride

c)

bromo hydride

d)

hydrobromic acid

41.

Name the compound MgF2


a)

magnesium fluoride

b)

magnesium(III) fluoride

c)

manganese Phosphide

d)

magnesium fluoride(II)

42.

Magnesium bromide is a compound with the chemical formula MgBr2. What does the "2" tell you?

a)

There are two bromine atoms for every magnesium atom

b)

There are two bromide atom for every magnesium atom

c)

There are two magnesium and two bromine atoms

d)

There are two magnesium atoms to every bromide atom.

43.

Which of the following is a pure substance?

a)

CO

b)

Co

c)

C02

d)

H2O

44.

In this diagram, X represents...

a)

A Compound

b)

an atom

c)

a mixture

d)

an element

45.

In this diagram, Y represents...

a)

an element

b)

a compound

c)

a molecule

d)

a mixture

46.

In this diagram, Z represents...

a)

An element

b)


A compound

c)


A molecule

d)

A mixture

47.

In this diagram, W represents...

a)

an element

b)

a compound

c)

a molecule

d)

a mixture

48.

How many atoms of carbon (C) are in C6H12O6?

a)

3

b)

12

c)

6

d)

24

49.

How many elements are in C6H12O6?

a)

1

b)

2

c)

3

d)

6

50.

The center of the atom is called the _________.


a)

nucleus

b)

neutron

c)

proton

d)

electron

51.

A positively charged subatomic particle is a/an _________.

a)

proton

b)

electron

c)

neutron

d)

valence electron

52.

A negatively charged subatomic particle is called a/ an _____________.

a)

proton

b)

electron

c)

neutron

53.

A subatomic particle that has NO charge is a/an _____________.

a)

proton

b)

electron

c)

neutron

54.

Electrons in the outer shell are called _____________

a)

outside

b)

valence

c)

distant

d)

mass

55.

Which of the following are not names for the areas that electrons are found in?


a)

cloud

b)

orbital

c)

shell

d)

space

56.

Atomic number ALWAYS = the number of _________


a)

neutrons

b)

protons

c)

nucleus

d)

mass

57.

Electrons can fill the first 3 clouds with the following numbers of electrons....


a)

2,10,8

b)

8,2,18

c)

2,8,18

d)

10,2,8

58.

Atomic Mass =

a)

Protons + Electrons

b)

Electrons + Neutrons

c)

Protons + Neutrons

59.

What is found in the nucleus?

a)

electrons

b)

neutrons and electrons

c)

protons and electrons

d)

protons and neutrons

60.

The overall charge of the nucleus is ____________.


a)

positive

b)

neutral

c)

negative

61.

Neutrons do not add a charge, they only add __________


a)

atomic number

b)

positive

c)

mass

d)

negative

62.

If an atom has a mass of 24 and an atomic number of 11, its neutron number is

a)

11

b)

13

c)

24

d)

12

63.

This is the smallest unit of an element.


a)

atoms

b)

compounds

c)

molecule

d)

nucleus

64.

any combination of two or more atoms that are chemically combined is called this.

a)

molecule

b)

element

c)

compound

d)

pure substance

65.

This is any combination of two or more atoms from different elements that are chemically combined.

a)

compound

b)

element

c)

molecule

d)

pure substance

66.

The basic building blocks of the universe. The smallest and most pure substances that can be found.

a)

elements

b)

molecules

c)

atoms

d)

compounds

67.

These are what determine the properties of every atom and make one element different from another. They have a positive charge (yes, I'm positive that it's a positive charge).

a)

protons

b)

neutrons

c)

electrons

d)

nucleus

68.

These hang out in the nucleus and don't really affect the properties of the atom that much. They don't have any charge (so they can't use credit cards).

a)

neutrons

b)

electrons

c)

protons

d)

atomic numbers

69.

These are what form chemical bonds as atoms share or take them from one another. They orbit the nucleus and have a negative charge (but they are still happy about things in general).

a)

electrons

b)

protons

c)

electron clouds

d)

neutrons

70.

This is the central region of an atom and where protons and neutrons hang out (but the protons and neutrons still follow proper social distancing rules!).

a)

nucleus

b)

periodic tables of elements

c)

electron cloud

d)

atomic number

71.

This is a list of the 118 known elements that exist (and a picture of it is on this quiz!

a)


The Periodic Table of Elements!

b)

Facebook

c)

The Student Faculty Handbook

d)

Wikipedia

72.

The Student Faculty Handbook

a)

matter

b)

element

c)

mass

d)

energy

73.

This tells you how many protons are in each atom of a specific element and how many electrons there are in each unreacted atom from that element.

a)

atomic number

b)

chemical formula

c)

atomic mass

d)

chemical symbol

74.

or chemistry, the best way to think of this is how much stuff there is in a substance. For physics, the best way to think of this is its the measure of an object's resistance to a change in its motion.


a)

mass

b)

atomic mass

c)

matter

d)

atomic number

75.

This is a one or two letter representation of each element that is generally close to the element's name. The first letter of this will ALWAYS be capitalized.

a)

chemical symbol

b)

atomic number

c)

chemical number

d)

atomic mass

76.

This is where electrons hang out--it goes around the nucleus of an atom.

a)

electron clouds

b)

cumulus

c)

apple icloud

d)

stratus

77.

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---

a)

a gas at room temperature.

b)

given off by green plants.

c)

made of two different elements

d)

useful to human beings

78.

What is the Chemical Symbol for Magnesium?


a)

12

b)

24.31

c)

Magnesium

d)

Mg

79.

Compounds are different than elements because compounds are ---

a)

combinations of two or more elements

b)

made from the same type of atoms.

c)

not able to be broken down into parts.

d)

a pure substance; elements are not.

80.

Is sugar (C12H22O11) an element or a compound?


a)

compound

b)

element

81.

Is Iron (Fe) an element or a compound?

a)

element

b)

compound

82.

Which of the following represents an element?

a)

H2O

b)


NaCl

c)


H2

d)

CaCO3

83.

How many elements are represented in the compound?
Na2CO3


a)

1

b)

3

c)

2

d)

4

84.


The chemical symbol of an element always matches the element's name.

a)

agree

b)

disagree

85.

Represented by an unique chemical symbol

a)

elements

b)

compound

c)

both

86.

Located on the Periodic Table

a)

elements

b)

both

c)

compound

87.

What is the difference between Co and CO?

a)


CO is an element but Co is a compound

b)

CO is two elements and Co is only one element

c)

Nothing is different. They are the same thing.

d)

Co is not a pure substance

88.

How many elements are in this compound?

a)

13

b)

4

c)

6

d)

3

89.

The oceans are primarily composed of which two elements?

a)

carbon and hydrogen

b)

hydrogen and oxygen

c)

calcium and silicon

90.

NaCl is an example of a compound that contains helium and oxygen atoms.

a)

AGREE

b)

DISAGREE

91.

Compounds have properties different from the elements that make it up.

a)

agree

b)

disagree

92.

The Symbol for the Element Hydrogen

a)

H

b)

Hf

c)

He

d)

Ho

93.

The Symbol for the Element Helium

a)

H

b)

Hf

c)

He

d)

Ho

94.

The Symbol for the Element Oxygen

a)

C

b)

Os

c)

O

d)

Cl

95.

The Symbol for the Element Nitrogen

a)

Ne

b)

N

c)

O

d)

No

96.

The Symbol for the Element Calcium


a)

C

b)

Co

c)

Ca

d)

CA

97.

The Symbol for the Element Sodium

a)

NA

b)

Na

c)

N

d)

So

98.

The Symbol for the Element Silicon

a)

Si

b)

SI

c)

S

d)

Cs

99.

The Symbol for the Element Phosphorus

a)

Ph

b)

F

c)

P

d)

PH

100.

The Symbol for the Element Sulfur

a)

Su

b)

F

c)

SU

d)

S

101.

The Symbol for the Element Carbon


a)

C

b)

Ca

c)

CA

d)

Cr

102.

The Symbol for the Element Chlorine

a)

CL

b)

CH

c)

Cl

d)

Ch

103.

Which statements are true characteristics about elements:

I. made from a mixture

II. a pure substance

III. represented by a symbol

IV. make up matter on Earth

a)

I, III

b)

II, IV

c)

II, III, IV

d)

I, IV

104.

How many different atoms are in CaCO3

a)

3

b)

5

c)

4

d)

6

105.

The vertical columns on the periodic table #1-18


a)

Groups

b)


Subatomic Particles

c)


Periods

d)

Rows

106.

The majority of elements are classified as ________ and are located on the left side/middle of the periodic table.


a)

Metals

b)

Nonmetals

c)

Noble Gases

d)

Metalloids

107.

Most of these elements are gases and are located on the right side of the periodic table

a)


Metalloids

b)

Nonmetals

c)

Compounds

d)

Metals

108.

Which number is the atomic mass?

a)

79

b)

196.97

109.

What does the atomic mass tell you?

a)

Basically,the number of electrons and protons

b)


Basically, the number of protons and neutrons

c)

The number of neutrons

d)


The number of protons.

110.

Which item on this element square represents the atomic number?

a)

13

b)

Alumunium

c)

AI

d)

26.98

111.

Which item on this element square represents the atomic number?

a)

six protons in its nucleus

b)

more than six neutrons

c)

an atomic mass of six

d)

six electron clouds

112.

How many neutrons are in a Gold atom?

a)

79

b)

118

c)

196

d)

275

113.

How many protons are in Beryllium?

a)

4

b)

5

c)

9

d)

2

114.

Rust on an iron bar is an example of chemical change.

a)

T

b)

F

115.

A change where one or more new substances are created.

a)

Physical change

b)

Chemical change

116.
a)

6

b)

8

c)

7

d)

9

117.
a)

1

b)

2

c)

6

d)

8

118.

What is the atomic number of this atom?

a)

2

b)

6

c)

4

d)

none

119.

What is a compound?

a)

an atom with more electrons than protons

b)

an atom with more neutrons than protons

c)

a substance in which the atoms of two or more elements are combined together

d)

a substance in which the atoms of three or more elements are combined together

120.

Atoms combine to form _______.

a)

electrons

b)

nuclei

c)

molecules

d)

neutrons

121.

The element oxygen, represented by the symbol O, is classified as

a)

a pure substance

b)

a mixture

c)

a compound

d)

a solution

122.

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydrogen atoms. Carbon and hydrogen chemically combine to form methane (CH4).

a)

methane is an element and carbon and hydrogen are compounds.

b)

carbon, hydrogen, and methane are all compounds.

c)

carbon, hydrogen, and methane are all elements.

d)

carbon and hydrogen are elements and methane is a compound.

123.

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?


a)

Hydrogen is an element made of two or more kinds of atoms.

b)


Hydrogen is a compound made of two or more kinds of atoms.

c)

Hydrogen is a compound made of only one kind of atom.

d)

Hydrogen is an element made of only one kind of atom.

124.

Carbon dioxide is formed when two oxygen atoms chemically combine with a carbon atom. Which term best describes carbon dioxide?

a)

atom

b)

element

c)

mixture

d)

compound

125.

Every compound is a molecule but not every molecule is a compound.

a)

T

b)

F

126.

What is the term for combining 2 or more DIFFERENT atoms together?

a)

atoms

b)

molecules

c)

elements

d)

compounds

127.

Are these molecules also compounds?

a)

Y

b)

N

128.

Are these molecules also compounds?

a)

Y

b)

N

129.

Which is the correct definition for an element?

a)

A substance made up of only one type of atom that can be broken down

b)

Two or more different atoms that are chemically combined

c)

Two or more substances that are not chemically combined

d)

A substance made up of only one type of atom that cannot be broken down

130.

Which elements are present in H2SO4?

a)

hydrogen and oxygen

b)


hydrogen, oxygen and sodium


c)


hydrogen, oxygen and sulfur


d)

hydrogen, oxygen and silicon

131.

How many atoms of aluminium are there in the chemical formula for aluminium oxide: Al2O3

a)

2

b)

5

c)

3

d)

`

132.

True or false: Hydrogen atoms go around in pairs called molecules

a)

T

b)

F

133.

Elements can be broken down into simpler substances. 

a)

T

b)

F

134.

Compounds contain a _____ set of elements.

a)

fixed

b)

sweet 

c)

random 

d)

inaccurate 

135.

A compound is made of ________ atoms. 

a)

Big

b)

different

c)

similar

136.

How many elements are on the periodic table?

a)

53

b)

200

c)

116

d)

160

137.

What is the picture displayed?

a)

atom

b)

molecule

c)

element

d)

compound

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