TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
ACS EXAM review Study Guide with
Complete Solutions
Rutherford's Gold Foil Experiment - ✔️✔️Correct-proposed that atoms consist of a tiny,
massive, positive nucleus surrounded by electrons
nucleus - ✔️✔️Correct-contains all the positive charge and nearly all the mass of the
atom
James Chadwick - ✔️✔️Correct-discovered the neutron
cathode rays - ✔️✔️Correct-move from negative electrode to positive electrode (like
electrons in a voltaic cell)
Thompson's Cathode Ray Experiment - ✔️✔️Correct-discovery of the electron (also the
discovery that atoms are divisible into smaller particles)
Millikin's oil drop experiment - ✔️✔️Correct-determined the charge of the electron through
highest grade clock oil and electrons from X-ray that clung to positive charged oil drops-
determined that electrons are some whole value of charge (Faraday constant)
Thompson's plum pudding model - ✔️✔️Correct-model of a spherical atom composed of
diffuse positively charged matter in which electrons are embedded like raisins in plum
pudding
atomic number - ✔️✔️Correct-number of protons (Z)
mass number - ✔️✔️Correct-number of protons and neutrons (nucleons) (A)
1/16
,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
isotopes - ✔️✔️Correct-same element with different numbers of neutrons
mass spectrometry - ✔️✔️Correct-a method for measuring the relative masses and
abundances of atomic scale particles very precisely
empirical formula - ✔️✔️Correct-shows relative number of atoms in a compound
molecular formula - ✔️✔️Correct-shows the actual number of atoms of each element in a
molecule of compound
aufbau principle - ✔️✔️Correct-the rule that electrons occupy the orbitals of lowest energy
first
quantum mechanics - ✔️✔️Correct-mechanics applied to the atomic and nuclear level
and dealing with photons and other quanta that show both wave and particle behavior
Heisenburg's uncertainty principle - ✔️✔️Correct-the statement that, due to the laws of
quantum mechanics, it is impossible to simultaneously exactly measure a particle's
position and momentum or to exactly measure a particle's energy for a finite amount of
time.
electron energy - ✔️✔️Correct-The strength of attachment of an electron to the nucleus of
an atom; the closer and electron to the nucleus, the higher the electron binding energy.
quantum numbers - ✔️✔️Correct-the four numbers that define each particular electron of
an atom. The Principle Quantum Number (n) describes the electrons' energy and
distance from the nucleus. The Angular Momentum Quantum Number (l) describes the
shape of the orbital in which the electron resides. The Magnetic Quantum Number (m)
2/16
, TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
describes the orientation of the orbital in space. The Spin Quantum Number (s)
describes whether the spin of the electron is positive or negative.
photon - ✔️✔️Correct-packet of energy
electromagnetic radiation - ✔️✔️Correct-A form of energy exhibiting wavelike behavior as
it travels through space; can be described by wavelength, frequency, amplitude, and
speed.
radial probability distributions - ✔️✔️Correct-a graph in which the total probability of
finding the electron in each spherical shell is plotted versus the distance from the
nucleus
isoelectronic - ✔️✔️Correct-same number of electrons
alpha particle - ✔️✔️Correct-...
beta particle - ✔️✔️Correct-...
gamma ray - ✔️✔️Correct-...
group 1 - ✔️✔️Correct-alkali metals
group 2 - ✔️✔️Correct-alkaline earth metals
group 7 - ✔️✔️Correct-halogens
group 8 - ✔️✔️Correct-noble gases
electromagnetic spectrum (decreasing energy) - ✔️✔️Correct-x-ray, uv-ray, visible light,
infrared light, microwaves, tv, radio waves
higher photon energy - ✔️✔️Correct-higher frequencies (∨) and shorter wavelengths (λ)
3/16
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
ACS EXAM review Study Guide with
Complete Solutions
Rutherford's Gold Foil Experiment - ✔️✔️Correct-proposed that atoms consist of a tiny,
massive, positive nucleus surrounded by electrons
nucleus - ✔️✔️Correct-contains all the positive charge and nearly all the mass of the
atom
James Chadwick - ✔️✔️Correct-discovered the neutron
cathode rays - ✔️✔️Correct-move from negative electrode to positive electrode (like
electrons in a voltaic cell)
Thompson's Cathode Ray Experiment - ✔️✔️Correct-discovery of the electron (also the
discovery that atoms are divisible into smaller particles)
Millikin's oil drop experiment - ✔️✔️Correct-determined the charge of the electron through
highest grade clock oil and electrons from X-ray that clung to positive charged oil drops-
determined that electrons are some whole value of charge (Faraday constant)
Thompson's plum pudding model - ✔️✔️Correct-model of a spherical atom composed of
diffuse positively charged matter in which electrons are embedded like raisins in plum
pudding
atomic number - ✔️✔️Correct-number of protons (Z)
mass number - ✔️✔️Correct-number of protons and neutrons (nucleons) (A)
1/16
,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
isotopes - ✔️✔️Correct-same element with different numbers of neutrons
mass spectrometry - ✔️✔️Correct-a method for measuring the relative masses and
abundances of atomic scale particles very precisely
empirical formula - ✔️✔️Correct-shows relative number of atoms in a compound
molecular formula - ✔️✔️Correct-shows the actual number of atoms of each element in a
molecule of compound
aufbau principle - ✔️✔️Correct-the rule that electrons occupy the orbitals of lowest energy
first
quantum mechanics - ✔️✔️Correct-mechanics applied to the atomic and nuclear level
and dealing with photons and other quanta that show both wave and particle behavior
Heisenburg's uncertainty principle - ✔️✔️Correct-the statement that, due to the laws of
quantum mechanics, it is impossible to simultaneously exactly measure a particle's
position and momentum or to exactly measure a particle's energy for a finite amount of
time.
electron energy - ✔️✔️Correct-The strength of attachment of an electron to the nucleus of
an atom; the closer and electron to the nucleus, the higher the electron binding energy.
quantum numbers - ✔️✔️Correct-the four numbers that define each particular electron of
an atom. The Principle Quantum Number (n) describes the electrons' energy and
distance from the nucleus. The Angular Momentum Quantum Number (l) describes the
shape of the orbital in which the electron resides. The Magnetic Quantum Number (m)
2/16
, TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
describes the orientation of the orbital in space. The Spin Quantum Number (s)
describes whether the spin of the electron is positive or negative.
photon - ✔️✔️Correct-packet of energy
electromagnetic radiation - ✔️✔️Correct-A form of energy exhibiting wavelike behavior as
it travels through space; can be described by wavelength, frequency, amplitude, and
speed.
radial probability distributions - ✔️✔️Correct-a graph in which the total probability of
finding the electron in each spherical shell is plotted versus the distance from the
nucleus
isoelectronic - ✔️✔️Correct-same number of electrons
alpha particle - ✔️✔️Correct-...
beta particle - ✔️✔️Correct-...
gamma ray - ✔️✔️Correct-...
group 1 - ✔️✔️Correct-alkali metals
group 2 - ✔️✔️Correct-alkaline earth metals
group 7 - ✔️✔️Correct-halogens
group 8 - ✔️✔️Correct-noble gases
electromagnetic spectrum (decreasing energy) - ✔️✔️Correct-x-ray, uv-ray, visible light,
infrared light, microwaves, tv, radio waves
higher photon energy - ✔️✔️Correct-higher frequencies (∨) and shorter wavelengths (λ)
3/16
