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Unit 4 Test Review - PT & Bonding 2023

Total questions: 60

Worksheet time: 59mins

Name
Class
Date
1.

Which is true of an element that is in group 13 on the periodic table ?

a)

It has three valence electrons

b)

It is part of the Alkali Metal family

c)

All elements in this group have 3 electron orbits

d)

These elements are considered non-metals

2.
Which element belongs to the most reactive family of metals, reacts violently with water, is solid at room temp, & has 4 energy levels?
a)
Potassium (K)
b)
Calcium (Ca)
c)
Rubidium (Rb)
d)
Bromine (Br)
3.

Which family of elements are extremely reactive nonmetals with 7 valence electrons?

a)

Group 1 (alkali metals)

b)

Group 18 (noble gases)

c)

Group 17 (halogens)

d)

Group 2 (alkaline earth metals)

4.

Which family of elements are inert (nonreactive) because they have a full energy level?

a)

Group 1 (alkali metals)

b)

Group 18 (noble gases)

c)

Group 17 (halogens)

d)

Group 2 (alkaline earth metals)

5.
Which element has 2 energy levels & 4 valence electrons.
a)
Silicon (Si)
b)
Aluminum (Al)
c)
Nitrogen (N)
d)
Carbon (C)
6.

Which part of the atom determines how an element interacts in a chemical reaction?

a)

nucleus

b)

protons

c)

all electrons

d)

valence electrons

7.
Which of the following elements loses electrons in an ionic bond?
a)

N

(5 V.E.)

b)

Ca

(2 V.E.)

c)

O

(6 V.E.)

d)

Cl

(7 V.E.)

8.

An element in Group 1 most easily forms an ionic bond with an element in which group? Hint: think about how many electrons are given away & how many are taken in.

a)

Group 2

b)

Group 15

c)

Group 16

d)

Group 17

9.
A proton is....
a)
A negatively charged subatomic particle
b)
A positively charged subatomic particle
c)
A neutrally charged subatomic particle
d)
The only subatomic particle located in the nucleus
10.

Which group is known as the Alkali Metals?

a)

Group 1

b)

Group 2

c)

Group 16

d)

Group 18

11.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
12.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
13.
Which of the following has a full valence shell?
a)
Oxygen
b)
Neon
c)
Barium
d)
Carbon
14.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
15.
What is the number of valence electrons for Oxygen?
a)
8
b)
6
c)
2
d)
1
16.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
17.
A bond that forms when electrons are transferred is called a/an
a)
ionic bond
b)
covalent bond
c)
hydrogen bond
18.
How are covalent bonds explained?
a)
When one atom takes the other atom's electron
b)
When the atom shares an electron with an another atom
c)
When the two nucleus merge
d)
When the neutrons leave the nucleus
19.
Atoms joined together by SHARING electrons are?
a)
Ionic bonds
b)
Covalent bonds
c)
Metallic Bonds
d)
James Bonds
20.
The columns in the periodic table are called ___________. 
a)
groups
b)
periods
21.
Is carbon considered a metal or a non-metal?
a)
metal
b)
nonmetal
c)
other
22.
How are ionic bonds formed?
a)
When atoms share an electron
b)
When opposite charged atoms attract
c)
When one atom takes a proton
d)
When one atom takes a neutron
23.
Are the atoms more stable when they are bonded together or when they are apart? 
a)
Bonded Together
b)
Apart
24.

What molecule is this?

a)

CO

b)

CO2

c)

C2O

d)

C2O2

25.

Valence electrons are found

a)

in the innermost energy level of an atom

b)

in the middle energy levels of an atom

c)

in the outermost energy levels of an atom

26.

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

a)

Gain 5

b)

Lose 3

c)

Nothing

27.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
28.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
29.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
30.
Group numbers on the periodic table help us determine 
a)

The number of valence electrons

b)

The number of electron orbits

31.
Where are metals located on the periodic table?
a)

Blue

b)

Yellow

c)

Red

32.
Where are the nonmetals located on the periodic table? 
a)

Blue

b)

Red

c)

Yellow

33.
Where are the metalloids located on the periodic table?
a)

Blue

b)

Red

c)

Yellow

34.
Two or more atoms held together by a chemical bond is called what?
a)

A molecule

b)

A mixture

35.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
36.
If I gain electrons I become
a)
Positive because I've added to my atom
b)
negative because I've added electrons
c)
same because i'm balanced
d)
equal because now I have electrons
37.

What is a Lewis Dot Structure?

a)

It shows all of the particles in the atom.

b)

Contains protons and neutrons

c)

Only shows the element symbol and it's outer most electron shell

d)

Contains protons and electrons

38.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

39.

How many electrons can the first shell hold?

a)

2

b)

4

c)

6

d)

8

40.
What happens when the sodium atom loses an electron?
a)
It become negatively charged 
b)
It become positively charged
c)
none
41.

According to the diagram, how many more electrons will this atom need to make to be stable?

a)

1

b)

2

c)

3

d)

4

42.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
43.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
44.
All ____________ are made up of two or more atoms bonded together.
a)
atoms
b)
molecules
c)
electrons
d)
elements
45.

Bonds between atoms in a molecule form as a result of the sharing of?

a)

protons

b)

electrons

c)

neutrons

d)

nucleus

46.

How many valence electrons does hydrogen have?

a)

4

b)

3

c)

2

d)

1

47.

How many valence electrons does oxygen have?

a)

2

b)

3

c)

6

d)

4

48.
Atoms are most stable when their outer shell is complete.
a)
true
b)
false
49.

Lithium is located in Group 1 of the Periodic Table, which element has similar characteristics of Lithium?

a)

Cesium (Cs)

b)

Beryllium (Be)

c)

Neon (Ne)

d)

Magnesium (Mg)

50.
Which element has 6 protons?
a)
N
b)
C
c)
O
d)
B
51.

How many electrons should Carbon have around its Lewis dot diagram?

a)

1

b)

3

c)

4

d)

5

52.

This is a correct Lewis Dot Diagram for oxygen (O)

a)

true

b)

false

53.

How would you draw a Lewis Dot Diagram for Magnesium?

a)
b)
c)
d)
54.

Which is the correct Bohr Model for Beryllium ?

a)
b)
c)
d)
55.

Is this atom stable or unstable?

a)

Stable

b)

Unstable

56.

Is this atom stable or unstable?

a)

Stable

b)

Unstable

57.

Why do all bonds form?

a)

to fill the outermost energy level

b)

so an atom can be unstable

c)

so the number of protons and electrons can equal.

d)

so they can gain neutrons.

58.

Electrons are involved in chemical reactions, not protons or neutrons.

a)

true

b)

false

59.

Atoms involved in a covalent bond are not charged, while atoms involved in an ionic bond are charged (negative or positive)

a)

true

b)

false

60.

What type of bon is shown in the diagram?

a)

Ionic

b)

Covalent

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