問題一覧
1
is discovered using a cathode ray tube
electron
2
the electron is discovered using a
cathode ray tube
3
cathode ray tube has two charge plates
cathode anode
4
an english physicist use the cathode ray tube and the electromagnetic theory to determine the ratio of electric charge to the mass of the individual negatively charged particle
joseph john thomson also known as jj thomson
5
if the magnetic field is on and the electric field is off the cathode ray hit
point a
6
if the electric field is on the ray hit
point c
7
since the cathode ray is attracted to the positively charged plate and repelled by the negatively charged plate it must consist of negatively charged particles
electron
8
the mass to charge ratio obtained by jj thomson was ____ where c stands for coulomb the unit of electrical charge
1.76 X 10⁸c/g
9
was able to quantify the charge of the electron in his oil drop experiment in 1906 he use a fine ionized oil with electromagnetic force
robert millikan
10
robert was able to calculate the charge of the electron and the mass of the electron which are
-1.6022x10^-19C and 9.10x10^-28g
11
are not indivisible and are made up of three subatomic particles the protons neutron electrons
atoms
12
what are the three subatomic particles of atoms
protons neutron electron
13
atoms in their neutral state have a zero charge due to the equal number of
protons electrons
14
are responsible for almost all chemical properties and reactivities of substances
electrons
15
which contains the protons and the neutrons are unchanged in chemical reactions but change in energy driven nuclear reactions
nucleus
16
also referred to in most references as the proton number(p) represents the total number of protons present in an element
atomic number
17
formula of getting the neutron
n = a - z
18
formula of getting the proton
p = a - n
19
formula of getting the electron if there is a charge on an element
q - p = e
20
being the tiniest and most mobile of all subatomic particles can easily be removed out of an atom or capture from an external source
a removed or captured in an atom it becomes charged and is transformed to an ion
electrons
21
since electrons are negatively charged the removal of electrons produces positively charged ions called
cation
22
atoms that gain electrons from external sources become negatively charged ions called__, also have more electrons than proton
anions
23
is determined as the difference between the number of protons and the number of electrons
charge number
24
atoms are dense and solid with no internal structure or subatomic particles considered
solid sphere john dalton
25
atoms are described as uniform positively charged spheres with electrons embedded within them similar to raisins in a pudding
plum pudding by jj thomson
26
atom consists of a small dense positively charged nucleus of the center with electrons are beating around it similar to planet orbiting around the sun
nuclear by ernest rutherford
27
electrons move in quantized discrete energy levels around the nucleus and emit or absorb energy when transitioning between levels
planetary by niels bohr
28
electrons do not have definite orbits but are described by wave functions that represent probability distributions of their location
quantum erwin schrödinger
29
british chemist and physicist
post the solid sphere model in the early 19th century
shifted from philosophical ideas to scientific theory
first atomic model based on experimental evidence and quantitative observations
pave the way for the development of modern atomic theory
john dalton
30
according to this theory atoms are tiny balls that can't be broken and all made of the same material this theory help explain how different chemicals mixed together and what makes them different
solid sphere model
31
english physicist known for his work on the nature of electrons
propose the plum pudding model in the late 19th century
discover the electrons as distinct particles
understanding from indivisible atom to subatomic particles
paved the way for for the exploration of atomic structure
jj thomson
32
according to this theory atoms are like plum pudding with tiny positive charges rather through out a cloud of negative electrons this theory help explain why atoms have a neutral charge overall and white day emit light when they collide with each other
plum pudding model
33
new zealand born physicist known for his contribution to nuclear physics
introduce the nuclear model in the early 20th century
first model to propose a central massive nucleus
explain the behavior of positively charged alpha particles in the gold foil experiment
laid the ground work for understanding atomic structure and radioactivity
ernest rutherford
34
according to the theory atoms of a nucleus with a positive charge and most of the mass surrounded by natural gas orbits like planets it explains why particles can pass through or bounds of atoms and is the basis of our current understanding of atomic structures
nuclear model
35
danish physics known for his pioneering work in atomic structure
propose the planetary model in the early 20th century
explain the atomic spectra with the precision
introduce the concept of quantized energy levels
bridge classical physics with emerging quantum mechanics
niels bohr
36
according to this theory electrons orbit the nucleus of an atom in specific energy levels or shells this theory help explain why atoms emit light and why they absorb certain colors of light it also help explain the stability of atoms and why they don't fall apart
planetary model
37
austrian physicist renowned for his contributions to quantum mechanics
propose the quantum model in the 1920s
quantum mechanics provides a comprehensive understanding of electron behavior
it successfully explains multi electron atoms
quantum mechanics is the foundation of modern atomic theory
erwin schrödinger
38
according to this theory electrons exist as a probable wave like pattern around the nucleus not in a specific orbit it explains why electrons act like a particles and wave and is the foundation of our understanding of atomic structure and widely used in modern physics
quantum model
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31問 • 1年前問題一覧
1
is discovered using a cathode ray tube
electron
2
the electron is discovered using a
cathode ray tube
3
cathode ray tube has two charge plates
cathode anode
4
an english physicist use the cathode ray tube and the electromagnetic theory to determine the ratio of electric charge to the mass of the individual negatively charged particle
joseph john thomson also known as jj thomson
5
if the magnetic field is on and the electric field is off the cathode ray hit
point a
6
if the electric field is on the ray hit
point c
7
since the cathode ray is attracted to the positively charged plate and repelled by the negatively charged plate it must consist of negatively charged particles
electron
8
the mass to charge ratio obtained by jj thomson was ____ where c stands for coulomb the unit of electrical charge
1.76 X 10⁸c/g
9
was able to quantify the charge of the electron in his oil drop experiment in 1906 he use a fine ionized oil with electromagnetic force
robert millikan
10
robert was able to calculate the charge of the electron and the mass of the electron which are
-1.6022x10^-19C and 9.10x10^-28g
11
are not indivisible and are made up of three subatomic particles the protons neutron electrons
atoms
12
what are the three subatomic particles of atoms
protons neutron electron
13
atoms in their neutral state have a zero charge due to the equal number of
protons electrons
14
are responsible for almost all chemical properties and reactivities of substances
electrons
15
which contains the protons and the neutrons are unchanged in chemical reactions but change in energy driven nuclear reactions
nucleus
16
also referred to in most references as the proton number(p) represents the total number of protons present in an element
atomic number
17
formula of getting the neutron
n = a - z
18
formula of getting the proton
p = a - n
19
formula of getting the electron if there is a charge on an element
q - p = e
20
being the tiniest and most mobile of all subatomic particles can easily be removed out of an atom or capture from an external source
a removed or captured in an atom it becomes charged and is transformed to an ion
electrons
21
since electrons are negatively charged the removal of electrons produces positively charged ions called
cation
22
atoms that gain electrons from external sources become negatively charged ions called__, also have more electrons than proton
anions
23
is determined as the difference between the number of protons and the number of electrons
charge number
24
atoms are dense and solid with no internal structure or subatomic particles considered
solid sphere john dalton
25
atoms are described as uniform positively charged spheres with electrons embedded within them similar to raisins in a pudding
plum pudding by jj thomson
26
atom consists of a small dense positively charged nucleus of the center with electrons are beating around it similar to planet orbiting around the sun
nuclear by ernest rutherford
27
electrons move in quantized discrete energy levels around the nucleus and emit or absorb energy when transitioning between levels
planetary by niels bohr
28
electrons do not have definite orbits but are described by wave functions that represent probability distributions of their location
quantum erwin schrödinger
29
british chemist and physicist
post the solid sphere model in the early 19th century
shifted from philosophical ideas to scientific theory
first atomic model based on experimental evidence and quantitative observations
pave the way for the development of modern atomic theory
john dalton
30
according to this theory atoms are tiny balls that can't be broken and all made of the same material this theory help explain how different chemicals mixed together and what makes them different
solid sphere model
31
english physicist known for his work on the nature of electrons
propose the plum pudding model in the late 19th century
discover the electrons as distinct particles
understanding from indivisible atom to subatomic particles
paved the way for for the exploration of atomic structure
jj thomson
32
according to this theory atoms are like plum pudding with tiny positive charges rather through out a cloud of negative electrons this theory help explain why atoms have a neutral charge overall and white day emit light when they collide with each other
plum pudding model
33
new zealand born physicist known for his contribution to nuclear physics
introduce the nuclear model in the early 20th century
first model to propose a central massive nucleus
explain the behavior of positively charged alpha particles in the gold foil experiment
laid the ground work for understanding atomic structure and radioactivity
ernest rutherford
34
according to the theory atoms of a nucleus with a positive charge and most of the mass surrounded by natural gas orbits like planets it explains why particles can pass through or bounds of atoms and is the basis of our current understanding of atomic structures
nuclear model
35
danish physics known for his pioneering work in atomic structure
propose the planetary model in the early 20th century
explain the atomic spectra with the precision
introduce the concept of quantized energy levels
bridge classical physics with emerging quantum mechanics
niels bohr
36
according to this theory electrons orbit the nucleus of an atom in specific energy levels or shells this theory help explain why atoms emit light and why they absorb certain colors of light it also help explain the stability of atoms and why they don't fall apart
planetary model
37
austrian physicist renowned for his contributions to quantum mechanics
propose the quantum model in the 1920s
quantum mechanics provides a comprehensive understanding of electron behavior
it successfully explains multi electron atoms
quantum mechanics is the foundation of modern atomic theory
erwin schrödinger
38
according to this theory electrons exist as a probable wave like pattern around the nucleus not in a specific orbit it explains why electrons act like a particles and wave and is the foundation of our understanding of atomic structure and widely used in modern physics
quantum model