What to subscript numbers tell us?

# of atoms of an element in a compound

Groups/families tell us how many ______ _______ those elements have.

Valence electrons, Oxidations numbers

Which of the following describes a gas?

indefinite shape and indefinite volume

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Scientific Method, Matter, Atoms, Periodic Table, Chemical Bonds

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Answers

1
Which of the following has a positive charge?
Electron
Proton
Neutron
2
What to subscript numbers tell us?
# of electrons in a compound
# of atoms of an element in a compound
# of elements in a compound
# of compounds in a compound
3
A metal rusting is an example of?
Chemical Property
Physical Property
4
In a neutral atom, the number of protons is equal to the number of?
Neutrons
Mass
Electrons
Protons
5
How many periods are there?
5
7
3
18
6
Which type of chemical bond is the STRONGEST?
Metallic
Covalent
Ionic
7
What is part of a well-written conclusion?
Observations
Results
Data
Hypothesis
8
What type of mixture are the parts noticeably different?
Homogeneous
Heterogeneous
9
Synthetic elements are also referred to as....
Lab-made elements
Isotopes
Transuranium elements
Fake elements
10
What are your questions based on?
Hypothesis
Observations
Conclusion
Data
11
Groups/families tell us how many ______ _______ those elements have.
Energy levels
Valence electrons
None of the above
Oxidations numbers
12
Where are electrons located?
Nucleus
Electron Cloud
13
Which type of chemical bond is the WEAKEST?
Ionic
Covalent
Metallic
14
CO₂ is called:
Monocarbon Monoxide
Dicarbon Monoxide
Carbon Dioxide
Monocarbon Dioxide
15
Butter melting is an example of?
Physical property
Chemical property
16
Which of the following is a correct formula for Na¹⁺, S^2-?
Na2S
NaS
NaS2
Na2S
17
What is the following model called?
Lewis Dot Diagram
Bohr Model
Electron Cloud Model
18
What type of mixture are the parts evenly distributed?
Heterogeneous
Homogeneous
19
The interaction of electrons between two or more atoms is known as....
Electricity
Electron configuration
Chemical bond
Isotopes
20
Which of the following is a bond between a nonmetal and nonmetal?
Metallic
Covalent
Ionic
21
What is the formula used to calculate density?
D=m/v
m*v*d=D
D= v*m
v=m/d
22
As you move left to right on the periodic table, elements become...
more metallic
less metallic
neither of those
23
A polar bond that does not have oppositely charged ends is called?
Non polar covalent
Ionic
Covalent
Polar covalent
24
Which of the following is a bond where electrons flow from one metal to another?
Covalent
Metallic
Ionic
25
Which of the following describes a gas?
indefinite shape and indefinite volume
Heated ionized gas
Indefinite shape and definite volume
Definite shop and volume
26
Which groups are known as the "noble gases"?
3-12
2
1
18
27
Which group of elements are said to be the most reactive?
1
18
17
2
28
Which groups are known as the "transition metals"?
18
1
2
3-12
29
Heterogeneous mixture that separates into layers over time.
Solution
Colloid
Suspension
30
Which of the following has a negative charge?
Electron
Neutron
Proton
31
Which of the following is an example of a compound?
Palladium
Chromium
Water
Potassium
32
Which of the following is a bond between a metal and nonmetal?
Covalent
Metallic
Ionic
33
Which of the following are properties of nonmetals?
Ductile
Malleable
Brittle
Dull
34
How many electrons can the first energy level hold?
2
8
1
3
35
Which group of elements are not reactive?
1
18
2
17
36
Which of the following has a neutral charge?
Electron
Proton
Neutron
37
Anything that takes up space and has mass is called?
Matter
Nucleus
Object
Atom
38
The horizontal rows are called....
rows
families
groups
periods
39
CO₂ is what type of bond?
Covalent
Metallic
Ionic
40
Atoms of the same element that have different number of neutrons are called...
Transuranium elements
They can't have different number of neutrons
Isotopes
Elements
41
True or False: Mixtures have a a fixed composition.
True
False
42
Where are the list of different types atoms found?
There are different types of atoms?
In a book
They're not listed
Periodic Table of Elements
43
The vertical columns are called....
Two of the above
groups
periods
families
44
Does not form layers, cannot be filtered, but can scatter light.
Colloid
Solution
Suspension
45
What is a hypothesis based on?
Conclusions
Observations
Data
Prior Knowledge
46
How many electrons can the third energy level hold?
8
3
2
1
47
Binary compounds have how many elements?
3
1
4
2
48
Basic building block of life?
Electron
Proton
Neutron
Atom
49
What tells us the ratio of atoms for each element in a compound?
Compound Name
Chemical Bond
Chemical Formula
Oxidation Numbers
50
Mass =
electrons + protons
electrons + neutrons
protons + neutrons
It's equal to the number of electrons
51
How many sense do you use to make observations?
8
5
2
6
52
How is the modern periodic table of elements arranged?
# of neutrons
# of protons
Increasing mass
Increasing orbitals
53
Where is the majority of the mass found in an atom?
Nucleus
Electron cloud
54
Elements can be classified as....
Nonmetals
All of the above
Metals
Metalloids
55
How many groups/families are there?
7
3
5
18
56
The atomic number on an element box represents what?
Number of neutrons
Number of protons
The first two choices
Number of electrons
57
How many electrons can the second energy level hold?
3
2
8
1
58
Which of the following describes a solid?
Definite shop and volume
indefinite shape and indefinite volume
Indefinite shape and definite volume
Heated ionized gas
59
What questions should be included when making a prediction?
If...then
So...What
This...then
Will happen
60
True or False: Matter is in constant motion
False
True
61
What is located in the nucleus of an atom?
Only two above
Neutrons
Protons
Electrons
62
To calculate the number of neutrons in an atom you....
mass - # of protons
# of protons- # of electrons
look on the element box
# of neutrons-mass
63
What are valence electrons?
Any of the electrons an element has
Electrons in the inner energy level
Electrons found in the outer energy level
Positive electrons
64
A pure substance is....
An element
A compound
Matter that has exactly the same composition
Matter that changes compostion
65
Lewis dot diagrams represent....
valence electrons
neutrons
protons
all electrons
66
How did Mendeleev originally arrange the periodic table of elements?
# of neutrons
Increasing mass
Increasing orbitals
# of protons
67
Which of the following is a bond where electrons are given or taken?
Metallic
Ionic
Covalent
68
Which of the following is the correct name for Na¹⁺, S^2-?
Sodium Sulfide
Sodide Sulfur
Sodium Sulfer
Sodium (II) Sulfide
69
How many types of atoms does an element contain?
2
0
5
1
70
Which of the following is a chemical property of matter?
Boiling Point
Flammability
Malleability
Viscosity
71
In the Bohr Model, electrons are said to....
Do not move
Move in fixed energy levels
Float around randomly
72
Noble gases are non-reactive because they have...
there's no reason
stable electron configuration
have 8 valence electrons
the were founded by a king
73
Which of the following are properties of metals?
Dull
Brittle
Malleable
Ductile
74
Periods tell us how many ______ _______ those elements have.
Oxidations numbers
None of the above
Energy levels
Valence electrons
75
How easily an element will react to form a compound is called....
chemical reactivity
valence electrons
compounding
bonding
76
What is included in your results?
Charts
All of the Above
Graphs
Figures
77
Electron configuration is....
arrangement of electrons
arrangement of neutrons
arrangement of protons
78
Which of the following are physical properties of matter?
Density
Reactivity
Flammability
All of the above
79
Which subatomic particle is the smallest?
Neutron
Proton
Electron
80
Which of the following describes a liquid?
Definite shop and volume
Heated ionized gas
indefinite shape and indefinite volume
Indefinite shape and definite volume
81
Metalloids have properties of...
No such thing as metalloids
Nonmetals
Metals
Both metals and nonmetals
82
Which energy level has electrons with the MOST amount of energy?
The energy level furthest from the nucleus
The one closest to the nucleus
The third energy level
The second energy level
83
What are you testing when you design your experiment?
Hypothesis
Prediction
84
What type of bond does water have?
Covalent
Metallic
Ionic
Polar covalent
85
Oxidation numbers tell us the number of electrons an atom can....
lose
All of the above
gain
share
86
Which of the following is a bond where electrons are shared?
Metallic
Covalent
Ionic
87
When substances dissolve and form a homogeneous mixture.
Suspension
Solution
Colloid
88
Which of the following are example of phase changes?
Evaporation
Condensation
Freezing
All of the above
89
Where is the majority of the volume found in an atom?
Nucleus
Electron cloud
90
Which step comes first in the scientific method?
Make Observations
Form a Hypothesis
Conclusion
Ask Questions
91
What is the scientific method?
Steps to use when playing in the lab
A way to gather, organize, and communicate info
There's no such thing
92
Which energy level has electrons with the LEAST amount of energy?
The third energy level
The energy level furthest from the nucleus
The second energy level
The one closest to the nucleus

Scientific Method, Matter, Atoms, Periodic Table, Chemical Bonds Flashcards | StudBud