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Basic Chemistry

Total questions: 121

Worksheet time: 1hrs 8mins

Name
Class
Date
1.

Which subatomic part of an atom gives it a positive charge?

a)

Neutron

b)

Proton

c)

Electron

d)

Nucleus

2.

Which region of an atom has a negative charge?

a)

The nucleus

b)

Both nucleus and electron cloud

c)

The neutrons

d)

The electron cloud

3.

What is the smallest 'building block' of the elements that make up the universe?

a)

An atom

b)

An electron

c)

A proton

d)

A cell

4.

An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?

a)

0

b)

7

c)

6

d)

13

5.

The number of protons in the nucleus of an atom?

a)

Isotope

b)

Atomic mass

c)

Atomic number

d)

Element

6.

A certain atom of oxygen contains 8 protons, 8 neutrons, & 8 electrons. Another atom of unknown identity contains 9 protons. Which of the following MUST be true about this unidentified atom?

a)

It has 9 neutrons in its nucleus.

b)

It is an isotope of oxygen.

c)

Its atomic mass is a decimal number.

d)

It cannot be an atom of oxygen.

7.

An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable?

a)

Lose 1 electron

b)

Lost 7 electrons

c)

Gain 1 electron

d)

Neither gain nor lose any valence electrons

8.

An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable?

a)

Gain 1 electron

b)

Lose 2 electrons

c)

Lose 8 electrons

d)

Neither gain nor lose any valence electrons

9.

What type of bond is formed when atoms share electrons?

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Polyatomic

10.

How are ionic and covalent bonds alike?

a)

They both form organic molecules.

b)

They both fill outer electron shells.

c)

They both transfer electrons from one atom to another.

d)

They both transfer protons from one atom to another.

11.

Negatively charged particles found outside of the nucleus of an atom are called ______.

a)

protons

b)

neutrons

c)

electrons

12.

Positively charged particles found in the nucleus of an atom

a)

Neutron

b)

Proton

c)

Electron

13.

A neutral particle found in the nucleus of an atom

a)

neutron

b)

proton

c)

electron

14.

How many protons are in carbon?

a)

12

b)

6

c)

0

d)

7

15.

Calculate the number of neutrons for potassium.

a)

20

b)

19

c)

39

d)

58

16.

Elements are chemically combined substances that can be broken down into simpler substances.

a)

True

b)

False

17.

Identify the equation to calculate the number of neutrons for the isotope Nitrogen 14.

a)

15.0001 - 7 = 8.0001

b)

14.00307 - 7 = 7.00307

c)

15 - 7 = 8

d)

14 - 7 = 7

18.

The atomic number of an element is equal to the number of

a)

protons and electrons

b)

protons

c)

electrons

d)

electrons and neutrons

19.

The number of protons is equal to the number of electrons.

a)

True

b)

False

20.

Protons + __________ = atomic mass

a)

electrons

b)

neutrons

c)

neither

21.

Identify the equation to calculate the number of neutrons for the isotope Nitrogen 15.

a)

15.0001 - 7 = 8.0001

b)

14.00307 - 7 = 7.00307

c)

15 - 7 = 8

d)

14 - 7 = 7

22.

Matter

a)

has mass.

b)

All of the choices are correct.

c)

occupies space.

d)

is what life is composed of

e)

is composed of elements.

23.

Which of the following elements is Not one of the six most common in living organisms?

a)

carbon

b)

oxygen

c)

iron

d)

nitrogen

e)

hydrogen

24.

Atomic number of Neon is--------.

a)

10

b)

12

c)

18

d)

14

25.

The number of protons and Number neutrons determine an elements

a)

Atomic number

b)

Mass number

c)

Atom

d)

None of the above

26.

Electronic configuration of the Ca [ calcium ]----------.

a)

[ 2, 8, 8, 3 ]

b)

[ 2, 8, 8, 1 ]

c)

[ 2, 8, 8, 4 ]

d)

[ 2, 8, 8, 2 ]

27.

In an atom neutrons are----------.

a)

Positive

b)

Negative

c)

Neutral

d)

Do not predict whether positive or negative.

28.

A strong intramolecular interaction or connection between atoms in a molecule.

a)

Ionic bond

b)

Covalent bond

c)

Metallic bond

d)

Chemical bond

29.

Elements are atoms of the same kind. What do you call a charged atom?

a)

Proton

b)

Ion

c)

Electron

d)

Neutron

30.

These electrons determine atoms reactivity or tendency to from bonds with other atoms.

a)

Core electrons

b)

Electrons

c)

Valence electrons

d)

Shell electrons

31.

Which of the following element does not belong to noble gases?

a)

Boron

b)

Oxygen

c)

Nitrogen

d)

All of the above

32.

This rule refers to the tendency of atoms to prefer to have 8 electrons in the valance shell.

a)

Solo

b)

Duet

c)

Trio

d)

Octet

33.

Air is what kind of substance?

a)

Colloid

b)

Suspension

c)

Mixture

d)

Foam

34.

This gas is a by-product of utilization of carbon dioxide, water and sunlight by autotrophs.

a)

Nitrogen

b)

Oxygen

c)

Helium

d)

Radon

35.

What is being shared by two elements bonded covalently?

a)

Atoms

b)

Protons

c)

Electrons

d)

Neutrons

36.

Ionic bonds from when a metal and a non-metal exchange electron. What is most likely to happen to a metal?

a)

Metals will form a negative ion because they lose electrons

b)

Metals will form a positive ion because they gain electron

c)

Metals will form a negative ion because the gain electrons

d)

Metals will form positive ion because they lose electrons

37.

Ions can be divided into two types. What ions bear a positive charge?

a)

Cations

b)

Anions

c)

Unions

d)

Ions

38.

The difference between atoms and ions is that atoms are neutral. It means to say that:

a)

They have equal numbers of protons and neutrons

b)

The have equal number of electrons and neutrons

c)

They have equal numbers of protons and electrons

d)

None of the above

39.

How do cations form?

a)

When an atom loses an electron

b)

When an atom loses 2 electrons

c)

When an atom loses 3 electrons

d)

All of the above

40.

These ions are atoms that gain or lose electrons, resulting in a net positive or negative charge.

a)

Ions

b)

Ionic compounds

c)

Covalent bonds

d)

Electrons

41.

What happens when Mg2+ reacts with O2-?

a)

Magnesium will gain electrons

b)

Magnesium will lose electrons

c)

Magnesium will gain protons

d)

Magnesium will lose protons

42.

What is the compound name for LiO?

a)

Lithium oxide

b)

Lithium oxygen

c)

Lithide oxide

d)

Oxithide

43.

Why do elements form bonds?

a)

They have the ability to do so

b)

They need to make a relationship

c)

They want to be stable when forming compounds

d)

They like to share what they have

44.

What element contains 8 protons?

a)

Argon

b)

Nitrogen

c)

Oxygen

d)

Uranium

45.

What element contains 42 protons?

a)

Gold

b)

Iron

c)

Oxygen

d)

Molybdenum

46.

What charge do neutrons have?

a)

Positive

b)

Negative

c)

Neutral

d)

Depends on their environment

47.

What charge do protons have?

a)

Positive

b)

Negative

c)

Neutral

d)

Depends on their environment

48.

How many electrons does this element have it its outer shell?

a)

7

b)

2

c)

5

d)

18

49.

Look at this image of a water molecule, what do you notice about the electrons?

a)

There are 15 of them, half in the hydrogen and half in the oxygen.

b)

They are pink and purple.

c)

They are labelled "H" and "O"

d)

They are being shared between hydrogen and oxygen

50.

Generally speaking, how many electrons do atoms "want" to have in their valence shell?

a)

8

b)

1

c)

14

d)

22

51.

Including the shared electrons, how many electrons are in oxygen's valence shell?

a)

2

b)

6

c)

8

d)

10

52.

The image shows the periodic grid for SODIUM. What is Sodium's atomic number?

a)

11

b)

12

c)

23

d)

Impossible to tell

53.
What does the ATOMIC MASS tell us about an atom?
a)
Protons + Neutrons
b)
Protons + Electrons
c)
Neutrons + Electrons
54.

What element will have the most similar physical and chemical properties to the element Sulfur (S)?

(click on the periodic table to expand it!)

a)

Carbon (C)

b)

Phosphorous (P)

c)

Oxygen (O)

d)

Neon (Ne

55.

What element will have the most similar physical and chemical properties to the element Bromine (Br)?

(click on the periodic table to expand it!)

a)

Fluorine (F)

b)

Carbon (C)

c)

Krypton (Kr)

d)

Selenium (Se)

56.

The image shows the periodic grid for SODIUM. How many protons are found in a sodium atom?

a)

11

b)

12

c)

23

d)

Impossible to tell

57.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
58.

Who invented the Periodic Table?

a)

Mendeleev

b)

Bohr

c)

Lewis

d)

Democritus

59.

As you move left to right on a row or period what happens?

a)

Atomic number increases by 1

b)

Electrons decrease

c)

Number of shells decrease

d)

Nothing

60.

What happens to the number of shells as you move down a group?

a)

They decrease by 1

b)

They increase by 1

c)

Nothing

61.

The first energy shell can hold ______ electrons.

a)

2

b)

8

c)

18

62.

All elements in the same row have the same number of shells.

a)

True

b)

False

c)

Sometimes

63.

Valence means......

a)

inside

b)

outside

c)

full

64.

Elements in the same group or column have the same ...

a)

# of valence electrons

b)

# of shells

c)

# of protons

d)

Mass Number

65.

Rows on the periodic table are called ___________.

a)

Periods

b)

Sentences

c)

Fences

66.

The columns in the periodic table are called ___________.

a)

Towers

b)

Herds

c)

Groups

67.

Elements in the same group have __________

a)

Similar Properties

b)

Same number of shells

c)

Similar Mass

68.

What do all elements in the same period have?

a)

same number of shells

b)

same number of electrons

c)

belong in the same family

69.
What are the three states of matter? 
a)
boxes, solids, and gases
b)
square, circle and triangle
c)
solids, liquids and gases
70.
Is this a solid, liquid or gas?  
a)
Solid
b)
Liquid
c)
Gas
71.
Is this a solid, liquid or gas?
a)
Solid
b)
Liquid
c)
Gas
72.
Is this a solid, liquid or gas?
a)
Solid
b)
Liquid
c)
Gas
73.
Is this a solid, liquid or gas?
a)
Solid
b)
Liquid
c)
Gas
74.
This ice cube is changing from a solid to a ______? 
a)
Solid
b)
Liquid
c)
Gas
75.
What type of energy is changing this solid to a liquid? 
a)
Light
b)
Sound
c)
Heat
76.
This water is changing from a liquid to a ________? 
a)
Solid
b)
Liquid
c)
Gas
77.
A solid can change its shape easily. 
a)
True
b)
False
78.
A liquid can change its shape easily. 
a)
True
b)
False
79.

The attraction between particles gives solids a definite

a)

shape and volume

b)

shape and color

c)

shape and position

d)

flow and radius

80.

The temperature at which a solid begins to liquefy is its ______ point.

a)

freezing

b)

boiling

c)

melting

d)

mass

81.

The amount of energy required for a liquid at its boiling point to become a gas is _____________.

a)

heat of fusion

b)

heat of vaporization

c)

transpiration

d)

freezing point

82.

Which of the following is a state of matter?

a)

particle

b)

thermal

c)

plasma

d)

diffuse

83.

When the temperature of a substance is lowered, its particles

a)

vibrate more quickly

b)

stop vibrating completely

c)

escape the attractive forces of the other particles

d)

vibrate more slowly

84.

When a gas becomes a liquid it is called

a)

condensation

b)

evaporation

c)

sublimation

d)

freezing

85.
Which of these will flow and fill up any shape of container?
a)
solid
b)
liquid
c)
gas
d)
cats
86.
How do gases move?
a)
They flow into any container.
b)
The keep their shape and are rigid.
c)
They vibrate and move freely at high speeds.
87.
Is sand a solid, liquid or gas?
a)
Solid
b)
Liquid
c)
Gase
88.
Which of these is true?
a)
Solids hold their shape.
b)
Liquids hold their shape.
c)
Gases hold their shape.
d)
Penguins eat pineapples.
89.
True or false: Solids can be squashed or forced into a smaller space
a)
True
b)
False
90.
Which of these is a liquid?
a)
Steam
b)
Ice
c)
Water
d)
Flour
91.
True or false: Gases can be squashed or forced into a smaller space
a)
True
b)
False
92.
Milk is a _____. It can take the shape of any container that it is in.
a)
Solid
b)
Liquid
c)
Gas
93.
Which of the following statements describe gas the BEST.
a)
Gas has a packed shape.
b)
Gas cannot change shape.
c)
Gas has a definite shape.
d)
Gas spreads out to fill a space.
94.
______ is an example of liquid water.
a)
Rain
b)
Water vapor
c)
Ice
d)
None of the above
95.
Ice cubes are the ___ form of water.
a)
Liquid
b)
Solid
c)
Gas
d)
None
96.
Solids __________.
a)
take the shape of their container
b)
have a fixed shape
c)
are compressible
d)
have particles that flow easily
97.
Water vapor is a __________.
a)
solid 
b)
liquid
c)
gas
98.

Molecules in a __________ have very little movement and the object keeps its shape and volume.

a)

solid

b)

liquid

c)

gas

99.

Does liquid have one solid shape

a)

no

b)

yes

c)

maybe

100.
Fluorine has an atomic number of 9. What can you conclude about an atom of fluorine from this fact?
a)
it has 9 protons
b)
it weighs 9 grams
c)
it has 9 electron shells
d)
it has a boiling point of 9 degree celsius
101.
In what part of an atom can protons be found?
a)
inside the electron
b)
inside the neutron
c)
inside the atomic nucleus
d)
inside the electron shells
102.
An atom of fluorine has an atomic mass of 19 u. Keeping in mind that its atomic number is 9, what can you infer about this atom?
a)
it has 9 neutrons
b)
it has 10 electrons
c)
it has 10 neutrons
d)
it has 10 protons
103.
If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:
a)
16
b)
32
c)
48
d)
64
104.
If a hydrogen atom has 1 proton, 1 electron, and 1 neutron, its atomic number is:
a)
1
b)
2
c)
3
d)
4
105.
On the periodic table, how is atomic mass represented?
a)
As an average of the mass of different isotopes
b)
as the exact mass of every atom
c)
as the mass of the most common isotopes
d)
As the masses of all protons added together
106.
What do carbon-12 and carbon-14 have in common?
a)
they have same number of protons
b)
they have the same number of neutrons
c)
they have the same atomic mass
d)
they have the same atomic weight
107.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
d)
they are different elements
108.
What can you conclude about carbon-14 from its name?
a)
It has 14 electrons
b)
it has 14 neutrons
c)
it has 14 protons
d)
it has an atomic mass of 14 u
109.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
110.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
111.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
112.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
113.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
114.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
115.
A Silicon atom wants...
a)
3 more electrons
b)
3 less electrons
c)
4 more or less electrons
d)
2 more electrons
116.
A Radium atom wants...
a)
One more electron
b)
One less electron
c)
Two more electrons
d)
Two less electrons
117.
Which particles change the charge in atoms when ions are formed?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Kittens
118.
What is a Rubidium ion's symbol?
a)
Rb-
b)
Rb+
c)
Rb-2
d)
Rb+2
119.
What is the ionic symbol for a phosphorus atom?
a)
P-3
b)
P+3
c)
P-2
d)
P+2
120.
What is the ionic symbol for Selenium?
a)
Se-2
b)
Se+2
c)
Se-3
d)
Se+3
121.
What is the ionic symbol for a Caesium atom?
a)
Cs+
b)
Cs-
c)
Cs+2
d)
Cs-2

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