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Atoms & Periodic Table Review
Atoms & Periodic Table Review
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1
A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. How many
protons
does a carbon-14 atom have?
8
12
6
14
2
The atoms in a sample of carbon must contain nuclei with the same number of
Neutrons
Protons
Electons
3
Periodic table is set up based on the number of theses
Electron
Proton
Neutron
4
Can be supported or rejected
Theory
Both Hypothesis and Theory
Hypothesis
5
Gives the identiy of the atom
Electron
Neutron
Proton
6
What is the number of protons in an atom of sodium?
11
12
11.9897
23
7
Atoms of the same element with varying number of
neutrons
.
isotope
ion
8
This is an element with full valence shell, very unreactive.
Noble Gases
Alkaline Earth Metals
Alkali Metals
Halogen
9
This is a group of elements with few valence electrons that conducts heat and electricity.
Metalloids
Nonmetals
Metals
10
An atom of the element ____________has an average atomic mass of about 16 amu
no elements have that mass
oxygen
nitrogen
sulfur
11
This is the weighted average of all of the isotopes of an element.
Atomic Mass
Atomic Number
12
One of a class of elements having properties intermediate to metals and nonmetals.
Metalloid
Metal
Nonmetal
13
Responsible for bonding
Proton
Electron
Neutron
14
These are the highly reactive elements located in Group 1 of the periodic table.
Alkaline Earth Metals
Transition Metals
Noble Gases
Alkali Metals
15
A horizontal row of elements in the periodic table.
Group
Period
16
Describe the composition of the nucleus of an atom.
It is composed of protons.
It is composed of protons and electrons.
It is composed of protons and neutrons.
It is composed of protons, neutrons, and electrons.
17
This is a subatomic particle with no charge and a mass of 1 amu.
Electons
Protons
Neutrons
18
This is the basic building block of all matter.
electron
cell
atom
proton
19
The mass of the electron is
about equal to the neutron.
very small compared to the proton.
almost the same as the proton.
very large compared to the neutron.
20
Over 99% of the mass of an atom is located
in the protons.
in the neutrons.
in the electron cloud.
in the nucleus.
21
An explanation of an observed phenomena
Hypothesis
Both Hypothesis and Theory
Theory
22
Not a hunch or an educated guess
Theory
Both Hypothesis and Theory
Hypothesis
23
Which statement is the BEST definition of an atom?
A substance that cannot be broken down chemically into simpler substances.
The smallest unit of a substance that exhibits all of the properties
The smallest particle that has the properties of an element.
Anything that has mass and occupies space.
24
A description of natural events that has been proven to be true time after time, without exception.
This describes
data.
a conclusion.
a theory.
a law.
25
The gold foil experiment showed the researchers that the atom is made mostly of
neutrons.
electrons.
empty space.
protons.
26
When can a scientific theory be changed?
after another scientist does an experiment
after many experiments and much more data has been collected
when new technology is developed
never; once it is a law or theory it is impossible to change
27
This is a type of element that has many valence electrons, not a conductor.
Metal
Nonmetal
Metalloid
28
This is a property of solid metals. Capable of being shaped or formed, by hammering or pressure.
moldability
malleability
density
ductility
29
Slightly larger than a proton
Electron
Neutron
Proton
30
This is a subatomic particle with a positive charge and a mass of 1 amu.
Neutrons
Electons
Protons
31
Can be modified
Hypothesis
Theory
Both Hypothesis and Theory
32
This is the first element in the periodic table, atomic number is one.
Neon
Sodium
Hydrogen
Helium
33
A testable statment
Both Hypothesis and Theory
Theory
Hypothesis
34
All of the statements are
true
about the arrangement of elements in the periodic table
EXCEPT
that the
metals are found on the left side of the periodic table.
inert gases are in the group farthest to the right.
transition metals are in the center of the periodic table.
rare earth elements are in the first column, on the left.
35
Comes and goes in the thousands
Hypothesis
Both Hypothesis and Theory
Theory
36
A _ predicts overall natural events in general terms, while a _ is a very specific prediction based on one circumstance.
hypothesis; theory
theory; hypothesis
law; theory
law; hypothesis
37
This is a group of protons and neutrons in the center of all atoms.
nucleolus
nucleus
electron cloud
proton cloud
38
How many neutrons are in a typical Beryllium nucleus?
5
9
3
4
39
This is a subatomic particle with a negative charge and very little mass.
Proton
Electon
Neutron
40
This is a subatomic particle with a negative charge and very little mass.
Neutrons
Protons
Electons
41
These are the reactive elements located in Group 2 of the periodic table.
Transition Metals
Alkali Metals
Alkaline Earth Metals
Noble Gases
42
A vertical columns of elements in the periodic table.
Period
Group
43
A
-Bohr's model,
B
-J. J. Thomson's model,
C
-Dalton's atomic theory,
D-
Rutherford's
Place in chronological order
C, B, D, A
A, B, C, D
B, C, A, D
D, B, C, A
44
In metals, lost during bonding
Neutron
Electron
Proton
45
These are the Group 3 and are dense metals with high boiling points.
Transition Metals
Noble Gases
Alkali Metals
Alkaline Earth Metals
46
MOST elements on the periodic table are
Metals
Nonmetals
Metalloids
47
This is the number of protons.
Atomic Mass
Atomic Number
48
Sometimes called an "educated guess"
Both Hypothesis and Theory
Theory
Hypothesis
49
This is the highly reactive group 17 family of elements with 7 valence electrons.
Alkaline Earth Metals
Alkali Metals
Halogen
Noble Gases
50
This is an atom that has lost or gained
electrons
.
ion
isotope
