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24Unit 1: Atoms & Chemical Bonding/Reactions STUDY GUIDE

Total questions: 71

Worksheet time: 52mins

Name
Class
Date
1.
What are the orbital limitations of a Bohr diagram? (select all that apply)
a)
1st Orbit- 2 electrons
b)
3rd Orbit - 8 electrons
c)
2nd Orbit - 8 electrons
d)
2nd Orbit- 4 electrons
e)
3rd Orbit - 16 electrons
2.
What lives in the nucleus of an atom? (select all that apply)
a)
protons
b)
neutrons
c)
electrons
3.
What types of elements go with ionic bonding? (select all that apply)
a)
metal
b)
non-metal
c)
transitional
4.
What is boiling point?
a)
Temperature at which liquid changed to a vapor or gas
b)
temperature at which liquid changed to a solid
c)
temperature at which a solid turns to a liquid
5.
what is a compound?
a)
2 or more different elements bonded together
b)
2 or more of the same elements bonded together
c)
2 or more atoms bonded together
d)
2 or more different atoms bonded together
6.
What is the isotopic notation for chlorine?
a)
Chlorine-17
b)
Chlorine-35
c)
Chlorine- 25
d)
Chlorine- 42
7.
What is the isotopic notation for Neon?
a)
Neon- 10
b)
Neon-30
c)
Neon-25
d)
Neon-20
8.
How many valence electrons does sulfur have?
a)
6 valence electrons
b)
5 valence electrons
c)
8 valence electrons
d)
9 valence electrons
9.
How many valence electrons does iodine have?
a)
7 valence electrons
b)
8 valence electrons
c)
5 valence electrons
d)
3 valence electrons
10.
What charge does an atom have?
a)
Positive
b)
Negative
c)
Neutral
11.
Is a cation positive or negative?
a)
positive
b)
negative
12.
Is an anion positive or negative?
a)
postive
b)
negative
13.
What is metallic bonding?
a)
Occurs when atoms of metals give up valence electrons, forming an electron “sea”. The positively charged atoms are bonded through their attraction to the negatively charged electrons
b)
Occurs when a metal atom donates one or more electrons to a non-metal atom. The metal becomes more positive (cation) and the non-metal becomes more negative (anion)
c)
Occurs when atoms share pairs of electrons instead of giving and receiving. The pair is included in the outer shell of both atoms. The bonding happens between the atoms of nonmetals
14.
Based on the isotopic notation chart on the board, what does A represent?
a)
Chemical symbol
b)
Mass Number
c)
Atomic Number
15.
Based on the isotopic notation chart on the board, what does Z represent?
a)
Chemical Symbol
b)
Mass Number
c)
Atomic Number
16.
Based on the isotopic notation chart on the board, what does X represent?
a)
Chemical Symbol
b)
Mass Number
c)
Atomic Number
17.
What does the period on the periodic table represent?
a)
energy levels
b)
valence electrons
c)
atomic number
d)
atomic mass
18.
What does the groups on the periodic table represent?
a)
energy levels
b)
valence electrons
c)
atomic mass
d)
atomic number
19.
How to do you find neutrons using the periodic table?
a)
atomic mass - atomic #
b)
atomic # - atomic mass
c)
electrons - protons
d)
valence electrons - energy level
20.
Balance the following equation: Ca + O2 -> CaO
a)
Ca + O2 -> 2 CaO
b)
2 Ca + O2 -> 2 CaO
c)
4 Ca + 2O2 -> 3 CaO
21.
Balance the following equation: Na + O2 -> Na2O
a)
5 Na + O2 -> 3 Na2O
b)
4 Na + 3 O2 -> 2 Na2O
c)
4 Na + O2 -> 2 Na2O
22.
Balance the following equation: C2H6 + O2 -> CO2 + H2O
a)
2 C2H6 + 7 O2 -> 4 CO2 + 5 H2O
b)
2 C2H6 + 7 O2 -> 4 CO2 + 6 H2O
c)
2 C2H6 + 6 O2 -> 4 CO2 + 6 H2O
23.
What is the equation for a synthesis reaction?
a)
A + B -> AB
b)
AB + C -> AC + B
c)
AB -> A + B
d)
AB + CD -> AC + BD
24.
What is the equation for a decomposition reaction?
a)
AB + CD -> AC + BD
b)
AB + C -> AC + B
c)
AB -> A + B
d)
A + B -> AB
25.
What is the equation for a single replacement reaction?
a)
A + B -> AB
b)
AB -> A + B
c)
AB + CD -> AC + BD
d)
AB + C -> AC + B
26.
What is the equation for a double replacement reaction?
a)
A + B -> AB
b)
AB -> A + B
c)
AB + C -> AC + B
d)
AB + CD -> AC + BD
27.

Why don't noble gases form bonds?

a)

They have high electronegativity

b)

They have low ionization energy

c)

Their outermost electron shell contains eight electrons

d)

They have high reactivity

28.

Noble Gases have _____ valence electrons so they are ______.

a)

0, reactive

b)

8, reactive

c)

0, unreactive

d)

8, unreactive

29.

A substance is composed purely of a Group 2 element. Which type of bonding does this substance have?

(a)  

30.

How much of each element is present in: Na2(CO3)

a)

Na

1.

2

b)

C

2.

1

c)

O

3.

3

31.
A compound that consists of positive and negative ions
a)
proton
b)
ionic bond
c)
density (D)
d)
ionic compound
32.

Bonds between atoms in a molecule (covalent compound) form as a result of the sharing  of?

a)

formulas

b)

electrons

c)

atoms

d)

chemicals

33.
A stable unit of two or more atoms held together by chemical bonds is called:
a)
compound
b)
element
c)
molecule
d)
atom
34.

How many protons are in Sodium (Na)?

a)

22.99

b)

19

c)

11

d)

3

35.

How many protons are in the element Nitrogen?

a)

7

b)

14.01

c)

21.01

d)

Nitrogen doesn't have protons

36.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
37.

Isotopes of an element have the same number of __________ but different numbers of __________.

a)

protons, neutrons

b)

neutrons, protons

c)

electrons, neutrons

d)

electrons, protons

38.

What determines the chemical properties of an atom?

a)

The number of protons in the nucleus

b)

The number of neutrons in the nucleus

c)

The arrangement of electrons in orbitals

d)

The total mass of the nucleus

39.

Explain why isotopes of the same element have different mass numbers.

a)

They have different numbers of protons.

b)

They have different numbers of neutrons.

c)

They have different numbers of electrons.

d)

They have different numbers of protons and electrons.

40.

For each square you move to the ​ (a)   across the ​ (b)   the number of ​ (c)   in the nucleus and the ​ (d)   charge​ (e)   by one.

Choose from the below words
right
periodic table
protons
nuclear
increases
41.

What is the center of an atom called, containing protons and neutrons?

a)

Electron cloud

b)

Nucleus

c)

Orbital

d)

Shell

42.
Which statement about the atomic nucleus is correct?
a)
The nucleus is made of protons and neutrons and has a negative charge.
b)
The nucleus is made of protons and neutrons and has a positive charge.
c)
The nucleus is made of electrons and has a positive charge.
43.

What is the atomic number of an element?

a)

The number of protons in the nucleus

b)

The number of neutrons in the nucleus

c)

The total number of protons and neutrons in the nucleus

d)

The total number of electrons orbiting the nucleus

44.

Determine the number of valence electrons in an atom of gallium.

(a)   valence electrons

45.

Describe the trend in atomic radius as you move down a group in the periodic table.

a)

It increases.

b)

It decreases.

c)

It remains the same.

d)

It first increases, then decreases.

46.

There are (a)   protons in an atom of carbon-14.

47.
When atoms combine, they may gain, lose, or share:
a)
protons
b)
electrons
c)
neutrons
d)
nuclei
48.

During a chemical reaction, do atoms change from one type to another?

a)

Not sure

b)

Sometimes

c)

No

d)

Yes

49.

What does a chemical change result in?

a)

A change in state of the substance (ex. liquid to solid)

b)

A change in texture of the substance.

c)

A change in the way atoms are bonded to each other.

d)

A change in the appearance of the substance.

50.

Which three of the following are features of ionic compounds? (click 3 boxes)

a)

They have bonds between metals and non-metals.

b)

They have bonds between two non-metals.

c)

They form simple molecular structures.

d)

They form giant ionic lattices.

e)

They involve the transfer of electrons.

51.

Which of the following is NOT a characteristic of ionic bonds?

a)

They involve the transfer of electrons.

b)

They occur between metals and nonmetals.

c)

They result in the formation of molecules.

d)

They have high melting points.

52.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
53.
How many atoms of carbon (C) are in  C6H12O6?
a)
3
b)
6
c)
12
d)
24
54.

CH4CH_4  

How many CARBON atoms are in this compound?

a)

1

b)

2

c)

3

d)

4

55.
How many oxygens atoms ( O )atoms in a molecule of H2O?
a)
1
b)
2
c)
3
d)
0
56.

The chemical formula C6H12O2 has how many hydrogen atoms?

a)

20

b)

6

c)

12

d)

2

57.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
58.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
59.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
60.
Read the following chemical formula: C6H12O6. How many hydrogen atoms are in the formula?
a)
12
b)
6
c)
4
61.
The chemical formula for glucose is C6H12O6 how many hydrogen atoms are there in glucose
a)
12
b)
1
c)
6
d)
24
62.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
63.
How many total atoms are represented in the formula CO 3? 

a)
three
b)
four
c)
five
d)
six
64.

How many atoms of each element does this contain?

2H2SO4

a)

4 H

2 S

8 O

b)

4 H

2 S

4 O

c)

8 H

4 S

4 O

d)

2 H

4 S

8 O

65.

How many atoms are in the compound Mg(NO3)2?

a)

8

b)

9

c)

10

d)

11

66.
How many Hydrogen atoms are in Water (H2O)
a)
1
b)
2
c)
3
d)
4
67.
In this type of bond, electrons are delocalized in a "sea"
a)
Ionic
b)
Covalent
c)
Metallic
d)
Nonpolar
68.
What is the basis of a metallic bond?
a)
the attraction of neutral metal atoms.
b)
the attraction between protons and neutrons.
c)
the attraction between positive metal ions and interlocking electrons.
d)
the attraction between positive metal ions and free floating electrons.
69.

This type of bonding is characterized by the term "sea of electrons"

a)

Ionic

b)

Covalent

c)

Metallic

d)

Treasury

70.

What happens to the electrons in metallic bonding?

a)

They are shared equally among atoms.

b)

They move freely throughout the metal.

c)

They are transferred from metal atoms to nonmetal atoms.

d)

They are tightly held by each atom and do not move.

71.

Why don't noble gases form bonds?

a)

Noble gases do form bonds

b)

They all have a full octet

c)

They only bond with each other

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