Atomic Structure and Theory
Scientists
Experiments
100
t
Experiments
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I-100
Thought of the atom as “plum-pudding”
.
Answer
I-200
Thought of the atom as a “planetary” model
.
Answer
I-300
This scientist first discovered the nucleus.
.
Answer
I-400
Thought of the “billiard ball” model for the
atom
.
Answer
I-500
Provided a mathematical relationship
describing the 3D space that an electron can
occupy
.
Answer
II-100
First modern scientist that said that matter is
composed of indestructible and indivisible
atoms
.
Answer
II-200
isotopes are atoms of one kind of element that
contain different numbers this subatomic
particle
.
Answer
II-300
When you have the same element, it is
guaranteed that you have the same of this
(these) subatomic particles.
.
Answer
II-400
This law states that the total mass of a
chemical reaction must remain the same.
.
Answer
II-500
• Which of these parts of Dalton's Atomic theory were
proven incorrect?
•
a.) Atoms of different elements differ in their physical
and chemical properties
•
b.) Atoms of different elements combine in simple
whole-number ratios to form compounds
•
c.) All matter is made of indivisible and indestructible
atoms.
•
d.) Chemical reactions consist of the combination,
separation, or rearrangement of atoms
•
e.) All atoms of a given element are identical in their
. properties.
chemical and physical
Answer
III-100
what the Au foil experiment showed about the
volume of an atom
.
Answer
III-200
the charge carried by alpha particles and the
charge carried by the nucleus
.
Answer
III-300
particles that make up most of the mass of the
atom and where they are found
.
Answer
III-400
a subatomic particle that was discovered by
J.J. Thompson in the late 1800's
.
Answer
III-500
Describe why the spectral glasses gave out
different colored lines
.
Answer
IV-100
the element with 32 electrons and 73 neutrons
.
Answer
IV-200
the mass number of the most likely most
abundant isotope of chlorine, Cl
.
Answer
IV-300
the number of electrons in a copper atom with
a postive two charge
.
Answer
IV-400
all atoms of the same element have the
same…; give name and particle name
.
Answer
IV-500
the isotope by which all other isotopes’
masses are measure; the standard mass
.
Answer
V-100
the two characteristics of isotopes of one kind
of element that are needed to determine the
average atomic mass of the element
.
Answer
V-200
the number on the periodic table that
represents the AAM
.
Answer
V-300
235
70
Q
2
Based on the following symbol, how many
protons, neutrons and electrons does it have
235
70
.
Q
2
Answer
V-400
How many protons, neutrons and electrons is
in a N-15 isotope with a negative 3 charge
.
Answer
V-500
Why are the AAM’s not whole numbers?
.
Answer
I-100 A
• JJThomson
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I-200 A
• Bohr
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I-300 A
• Rutherford
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I-400 A
• Dalton
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I-500 A
• Schrodinger
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II-100 A
• Dalton’s Atomic Theory
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II-200 A
• Neutron
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II-300 A
• Protons
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II-400 A
• Law of Conservation of Mass
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II-500 A
• The third and 5th one
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III-100 A
• it is mostly empty space
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III-200 A
• positive
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III-300 A
• neutrons and protons; the nucleus
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III-400 A
• electron
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III-500 A
• The electricity gives the gas energy and
promotes the electron to a higher energy
level. When it goes back to a lower energy
level it gives off the energy as the form of
light which we see as different
wavelengths/colors.
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IV-100 A
• germanium
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IV-200 A
• 35
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IV-300 A
• 27
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IV-400 A
• atomic number; protons
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IV-500 A
• carbon-12
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V-100 A
• mass of each isotope and the relative
percent abundance of each isotope
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V-200 A
• the one with the decimal!
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V-300 A
• 70 Protons, 165 Neutrons, 68 electrons
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V-400 A
• 7 protons, 8 neutrons, 10 electrons
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V-500 A
• the AAM is based on the weighted average
of all isotopes of the element
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