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WorksheetsBonding Unit Test Review
Total questions: 48
Worksheet time: 12mins
Name
Class
Date
1.
How many valence electrons does the element potassium have?
a)
1
b)
2
c)
4
d)
8
2.
To achieve chemical stability, what will a Phosphorous atom do?
a)
Gain one electron
b)
Gain three electrons
c)
Lose one electron
d)
Lose three electrons
3.
To achieve chemical stability, what will a potassium atom do?
a)
Gain one electron
b)
Gain two electrons
c)
Lose one electron
d)
Lose two electrons
4.
Which of the following is true of ionic bonds?
a)
Electrons are completely transferred during bonding
b)
Electrons are shared during bonding
c)
Electrons are not involved with bonding
d)
All of the above
5.
How many Aluminum are in Al2O3?
a)
3
b)
2
c)
5
6.
When a potassium atom and a chlorine atom are brought close to one another, what will go on with their electrons?
a)
Share Electrons
b)
Drop Electrons
c)
Transfer Electrons
d)
Nothing
7.
What kind of bond will form between chlorine and fluorine?
a)
Metallic
b)
Covalent
c)
Ionic
8.
What is an example of an element that doesn't like to bond?
a)
Neon
b)
Oxygen
c)
Hydrogen
d)
Selenium
9.
What is the kind of bond between two non metals called?
a)
Ionic
b)
Covalent
c)
Lattice
d)
Metallic
10.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
11.
Which element, when combined with Bromine, would most likely form an ionic compound?
a)
carbon
b)
lithium
c)
phosphorus
d)
aluminum
12.
What is the name given to the electrons in the highest occupied energy level of an atom?
a)
cations
b)
anions
c)
orbital electrons
d)
valence electrons
13.
Which of the follow occurs in an ionic bond?
a)
Like-charged ions attract
b)
2 atoms share electrons
c)
2 atoms share 2 electrons
d)
Oppositely charged ions attract
14.
A covalent bond is formed between
a)
nonmetal and nonmetal
b)
metal and metal
c)
cation and anion
d)
metal and nonmetal
15.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
16.
If an atom of nitrogen gains 3 electrons, what is its overall charge?
a)
Neutral - No charge
b)
+3
c)
-3
d)
-1
17.
If a potassium atom loses one electron, a positive ion results.
a)
TRUE
b)
FALSE
18.
Protons are important for chemical bonding.
a)
TRUE
b)
FALSE
19.
Anion is another term for an atom that gains one or more electrons.
a)
TRUE
b)
FALSE
20.
The charge of a normal atom is:
a)
Positive
b)
Neutral
c)
Negative
21.
Most atoms have no net charge because they have....
a)
an equal number of charged and non-charged particles
b)
neutrons in their nuclei
c)
an equal number of electrons and protons
d)
an equal number of neutrons and protons
22.
What usually forms the negative ion?
a)
nonmetals
b)
metal
c)
none
23.
Same charges will _____, while opposite will ______.
a)
repel; attract
b)
attract; repel
24.
An atom that has lost or gained electrons
a)
Ion
b)
Compound
c)
Molecule
d)
Chemical Bond
25.
What do atoms that form positive ions tend to do?
a)
Tend to lose electrons
b)
Tend to lose protons
c)
Tend to gain electrons
d)
Tend to gain protons
26.
Carbon tetrachloride contains how many atoms of chlorine?
a)
1
b)
2
c)
3
d)
4
27.
Covalent bonds are stronger than ionic bonds.
a)
TRUE
b)
FALSE
28.
calcium oxide
a)
Ca2O2
b)
Ca2O
c)
CaO
d)
CaO2
29.
SeCl4
a)
selenium chloride
b)
monoselenium tetrachloride
c)
selenium tetrachloride
d)
monoselenium chloride
30.
How many dots would a Lewis Dot structure of Helium have?
a)
1
b)
2
c)
8
d)
0
31.
Represents the atoms of elements and how many of each
a)
Molecule
b)
Chemical Formula
c)
Ion
d)
Compound
32.
The "glue" that holds compounds together
a)
Chemical Bond
b)
Chemical Formula
c)
Compound
d)
Ion
33.
An atom that has lost electrons
a)
Cation
b)
Anion
c)
chemical reaction
d)
Nuclear reaction
34.
Based on what you know which one of the following bonds would be harder to break
a)
KF
b)
CO2
35.
Ions are formed in which types of bonds
a)
Ionic
b)
Covalent
36.
What types of bonds are better conductors of electricity
a)
Ionic
b)
Covalent
c)
Both conduct electricity the same
37.
Which kind of reactions change the composition of an atom's nucleus
a)
Chemical
b)
Nuclear
c)
Ionic
d)
Covalent
38.
Which of the following statements is true
a)
Compounds are formed when elements mix together
b)
Compounds are made if specific elements in any amount
c)
Most things are compounds
d)
Compounds are not common
39.
Which one of the following would be attracted to one another
a)
Sodium and Magnesium
b)
Oxygen and Lithium
c)
Helium and Hydrogen
d)
Potassium and Copper
40.
In Chemical Reactions , atoms are
a)
Lost
b)
Gained
c)
Re-arranged
d)
Destroyed
41.
What type of bond is this?
a)
ionic
b)
covalent
42.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
43.
What is the ionic compound formed between K and F?
a)
KF
b)
K2F
c)
KF2
d)
K2F2
44.
What is the ionic compound formed between Ba and P?
a)
Ba2P3
b)
Ba3P2
c)
BaP
d)
Ba2P2
45.
When writing the name of an ionic compound, the negative ion (nonmetal) is usually written with which suffix?
a)
-ate
b)
-ionate
c)
-ide
d)
-apt
46.
If Potassium (+1) and Sulfur (-2) bonded together the chemical formula would be
a)
K2S2
b)
K2S
c)
KS2
d)
KS
47.
Why do Hydrogen and Helium only need two valence electrons?
a)
The first electron shell can only hold two electrons.
b)
They are both metals.
c)
They both begin with H.
d)
They are both gases.
48.
How do ions form?
a)
Atoms gain or lose electrons to fill or empty the valence shell.
b)
Atoms like cats so they become "pawww-sitive".
c)
Atoms gain or lose electrons to change their atomic mass.
d)
Atoms gain or lose electrons to match the number of neutrons.
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