A pure substance is....

Matter that has exactly the same composition, An element, A compound

What to subscript numbers tell us?

# of atoms of an element in a compound

Which energy level has electrons with the MOST amount of energy?

The energy level furthest from the nucleus

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

Valence electrons, Oxidations numbers

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

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Questions 92

Answers

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

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