7. How can substances be classified?
BasesAcids Neutral
1. Has pH1 - pH6
2. Turns litmus red
3. Tastes sour
1. Has pH7
2. Does not change
litmus
1. Has pH8 - pH14
2. Turns litmus blue
3. Tastes bitter
13. In which region of the table
would nonmetals be found?
A 1
B 2
C 3
D 4
CST Review Questions
27
14. How are electrons, protons and neutrons arranged in the atom?
8 Elements form a dividing line between
metals and nonmetals.
What are the general types of elements in the periodic table?
dividing line
Po
15. How are electrons, protons and neutrons arranged in the atom?
These elements are called metalloids.
What are the general types of elements in the periodic table?
metalloids
Po
16. What are the general types of elements in the periodic table?
Most of the elements in the periodic
table are metals to the left of the line.
Metals
Po
17. What are the general types of elements in the periodic table?
The elements to the right of the zigzag
are Non-metals.
Non-metals
Po
18. CST Review Questions
In which region of the table
would nonmetals be found?
A 1
B 2
C 3
D 4
27
19. CST Review Questions
In which region of the table
would nonmetals be found?
A 1
B 2
C 3
D 4
27
25. How are electrons, protons and neutrons arranged in the atom?
The inert (noble) gases are the elements in
Group 18 of the periodic table.
What are the noble (inert) gases?
Silicon
Inert Gases
29. E-Review Question 1 Explanation
The number of protons of an element is
called the atomic number.
Carbon
Oxygen
6 protons
Atomic Number = 6
8 protons
Atomic Number = 8
Hydrogen
1 proton
Atomic Number = 1
30. How many protons do atoms have?
1. Atomic numbers are the smaller
numbers on the periodic table.
C
6
Carbon
12
Atomic Number
(smaller number on chart)
31. How many protons do atoms have?
All elements have DIFFERENT
atomic numbers.
C
6
Carbon
12
Atomic Number
(smaller number on chart)
37. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
V. Metals are identified by their physical
properties.
38. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
1. Shininess
Metals are shiny.
39. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
2. Hardness
Metals are hard.
40. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
3. Malleable
Metals can be pounded
into different shapes.
41. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
4. Ductile
Metals can be made
into a wire.
42. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
5. Conduct Heat
Metals conduct heat.
43. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
6. Conduct Electricity
Metals conduct
electricity.
44. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
7. Solids at room temperature
Most metals are solids.
(Mercury is the only liquid metal)
45. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of metals are:
8. High Melting Temperature
Metals have high melting
temperatures.
46. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
Non-metals have very few of the
characteristics of metals.
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
47. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
1. Gases at
Room
Temperature
Some
Non-metals
are gases.
48. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
2. Solids at
Room
Temperature
Some
Non-metals
are solids.
49. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
3. Liquid at
Room
Temperature
Bromine is
the only liquid
Non-metal
50. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
4. Low Boiling
Point
Most
Non-metals
boil at a low
temperature.
51. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
5. Dull
Most
Non-metals
are dull not
shiny.
52. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
6. Brittle
Most
Non-metals
will break if
you hammer
or pull them.
53. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
7. Poor
Conductors
Non-metals
do not
conduct heat
or electricity.
54. How are electrons, protons and neutrons arranged in the atom?What are the general types of elements in the periodic table?
Boron (B)
Silicon (Si)
Germanium (Ge)
Arsenic (As)
Antimony (Sb)
Tellurium (Te)
Astatine (At)
Metalloids
Metalloids
55. 1. Properties of
Metals and Non
Metals
Metalloids have some
of the properties of
metals and nonmetals
How are electrons, protons and neutrons arranged in the atom?
Metalloids have some of the properties of
metals and nonmetals.
What are the characteristics of Metalloids?
Metalloids
Boron Antimony
Silicon
56. How are electrons, protons and neutrons arranged in the atom?
They are semiconductors.
What are the characteristics of Metalloids?
Metalloids
Boron Antimony
Silicon
2. Semiconductors
Metalloids conduct
electricity at different
temperatures and
exposures to light.
60. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of non-metals
are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
8. Low Melting
Temperatures
Non-metals
melt at low
temperatures.
61. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of metals are:
8. High Melting Temperature
Metals have high melting
temperatures.
62. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of Non-metals?
A. Some of the physical characteristics of
non-metals are:
Nitrogen
Carbon
Iodine
Non-metals
Oxygen
Bromine
7. Poor
Conductors
Non-metals
do not
conduct heat
or electricity.
63. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
5. Conduct Heat
Metals conduct heat.
64. How are electrons, protons and neutrons arranged in the atom?What are the characteristics of metals?
Metals
Silver
Gold
Copper
Platinum
A. Some of the physical properties of
metals are:
6. Conduct Electricity
Metals conduct
electricity.
70. Atomic Structure Graphic Organizer
+
+
Proton
Electron
Nucleus
-
-
Energy
Levels
Neutron
-
-
Helium Atom
Electron
Cloud
+ 1 (positive) 0 (no charge neutral)
- 1 (negative)
1 AMU 1 AMU
0 AMU Electrons swirl around
the nucleus at high
speeds forming a cloud.
Far from the nucleus
Number of protons
nucleus nucleus
Number
Atomic
Average
Mass
Atomic
protons + neutrons
Study
Page 36
71. 10. What is the reference point?
CST Review Questions
21
72. How are electrons, protons and neutrons arranged in the atom?
A. Protons and neutrons are in the center of the atom.
Bohr Atom
protons
neutrons
73. How are electrons, protons and neutrons arranged in the atom?
Bohr Atom
protons
neutrons
nucleus
1. The center of the atom is called the nucleus.
74. How are electrons, protons and neutrons arranged in the atom?
B. Electrons swirl around the nucleus at high speeds,
forming a cloud.
Bohr Atom
electrons
Electron Cloud
75. How are electrons, protons and neutrons arranged in the atom?
protons
neutrons
nucleus
Copy This Diagram in Your Notes.
electrons
76. 10. What is the reference point?
CST Review Questions
21
77. 10. What is the reference point?
CST Review Questions
21
85. How are isotopes written?
Carbon-13
X. Isotope names contain the name of the
element and the mass number of the
isotope.
Isotope name
element mass number
86. How many neutrons do atoms have?
protons
neutrons
Carbon-14
6 protons
8 neutrons
14 total
Carbon-13
6 protons
7 neutrons
13 total
Carbon-12
6 protons
6 neutrons
12 total
IX. Forms of an element with different
numbers of neutrons are called isotopes.
3 isotopes of carbon
87. How many neutrons do atoms have?
Carbon-14
6 protons
8 neutrons
14 total
Carbon-13
6 protons
7 neutrons
13 total
Carbon-12
6 protons
6 neutrons
12 total
A. Isotopes are named by the element’s
name and mass number (the number of
protons + neutrons.)
isotopes of carbon
110. How is mass conserved?
D. However in a chemical reaction the mass
of the reactants ALWAYS equals the
mass of the products.
sodium
+
chlorine salt
13 g Na + 12 g Cl 25 g NaCl
111. How are atoms conserved?
A. The atoms going into the reaction are always
same as the atoms coming out in the products.
2H 2O H2O2
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
O
H
H
O
H
H O
O
112. Chemical Reactions
2H S H2SO4
2 hydrogen 1 sulfur 4 oxygen 1 sulfuric
atoms atom atoms acid
molecule
The number of atoms of each element is the
same on both sides of a chemical reaction.
4O
=+ +
122. How are elements and compounds different?
III. The properties of compounds are always
different from the properties of the
elements that formed them .
Hydrogen
(gas)
Oxygen
(gas)
=
Water
(liquid)
element element compound
+
126. What are compounds?
3. The properties of water are nothing like the
properties of hydrogen and oxygen.
Hydrogen
+
Oxygen
=
Water
explodes
burns
freezes
147. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = ?
Air MassC = ?
Air MassD = ?
148. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = ?
Air MassD = ?
149. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = ?
150. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
151. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
152. 5
CST Review Questions
Mass = Density X Volume
Brick MassA = 2000 X 2 = 4000
Brick MassB = 2000 X 4 = 8000
Air MassC = 1 X 6000 = 6000
Air MassD = 1 X 10000 = 10000
158. Why is density important?
A. If an object has LESS density
than the liquid it will FLOAT.
The ball has LESS
density than water.
density of ball = less than water
159. Why is density important?
B. If an object has MORE density
than the liquid it will SINK.
The ball has MORE
density than water.
density of ball = more
than water
178. Carbon: Chemistry of Life
C. Many molecules found in living
things (like DNA, sugars, fats, and
proteins) are LARGE molecules
containing chains of carbon.
glucose saturated fat
DNA
179. Carbon: Chemistry of Life
D. Salt (NaCl) and water (H2O) are
small molecules in living things.
181. Hands on Activity
6C 12H C6H12O6
6 carbon 12 hydrogen 6 oxygen 1 glucose
atoms atoms atoms sugar
molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
6O
+
182. glucose
Hands on Activity
6C 12H C6H12O6
Making Molecular Models of Chemical Equations:
6O
O
O
O
O
H
O
O
C
C
C C
C
C
H
H
H
H H
H
H
H
185. Carbon: Chemistry of Life
I. Six elements form most
molecules in living things:
Phosphorus
Nitrogen
Carbon
Hydrogen
Oxygen
Sulfur
Please Never
Call Her On
Sunday