Chem 120 QUIZ #1 (Chapters 1-5)
Question and answers verified to pass
2025
Heisenberg uncertainty principle - correct answer ✔can't measure the
position and momentum of a particle simultaneously
atomic orbitals - correct answer ✔n (principle quantum number): energy of
electron
l (azimuthal quantum number): shape of electron
ms (magnetic quantum number): orientation of electron
ml (spin quantum number): spin of electron
Hund's rule - correct answer ✔for any subshell, the ground state electron
configuration is obtained by placing the electrons in different orbitals of this set
with parallel spins
Know abbreviations for orbital configurations - correct answer ✔ok
know orbital configurations - correct answer ✔ok
know if orbital of element is in ground state or excited state - correct answer
✔ok
know what part of periodic table has largest radii, smallest - correct answer
✔ok
, know what part of periodic table has largest ionization energy, smallest -
correct answer ✔ok
wave functions - correct answer ✔s orbital (1): sphere
p orbital (3): dumb bell
d orbital (5): clover (?)
ionization energy - correct answer ✔minimum energy it takes to remove
electron completely from gaseous atom or ion (high ionization energy means
more stability and smaller radius)
valence electrons - correct answer ✔electrons in outermost occupied shell of
atom
key role in determining chemical properties
Lewis dot - correct answer ✔representation of valence electrons in dot form
electromagnetic theory of radiation - correct answer ✔all forms of radiation
are propagated through space as oscillating electric and magnetic fields
wavelength - correct answer ✔distance between crests or troughts
frequency - correct answer ✔number of crests per second
electromagnetic spectrum - correct answer ✔going from short wavelength,
high frequency to low wavelength, short frequency
gamma ray --> x-ray --> UV ray --> visible --> infrared --> microwave --> radio
frequency
Question and answers verified to pass
2025
Heisenberg uncertainty principle - correct answer ✔can't measure the
position and momentum of a particle simultaneously
atomic orbitals - correct answer ✔n (principle quantum number): energy of
electron
l (azimuthal quantum number): shape of electron
ms (magnetic quantum number): orientation of electron
ml (spin quantum number): spin of electron
Hund's rule - correct answer ✔for any subshell, the ground state electron
configuration is obtained by placing the electrons in different orbitals of this set
with parallel spins
Know abbreviations for orbital configurations - correct answer ✔ok
know orbital configurations - correct answer ✔ok
know if orbital of element is in ground state or excited state - correct answer
✔ok
know what part of periodic table has largest radii, smallest - correct answer
✔ok
, know what part of periodic table has largest ionization energy, smallest -
correct answer ✔ok
wave functions - correct answer ✔s orbital (1): sphere
p orbital (3): dumb bell
d orbital (5): clover (?)
ionization energy - correct answer ✔minimum energy it takes to remove
electron completely from gaseous atom or ion (high ionization energy means
more stability and smaller radius)
valence electrons - correct answer ✔electrons in outermost occupied shell of
atom
key role in determining chemical properties
Lewis dot - correct answer ✔representation of valence electrons in dot form
electromagnetic theory of radiation - correct answer ✔all forms of radiation
are propagated through space as oscillating electric and magnetic fields
wavelength - correct answer ✔distance between crests or troughts
frequency - correct answer ✔number of crests per second
electromagnetic spectrum - correct answer ✔going from short wavelength,
high frequency to low wavelength, short frequency
gamma ray --> x-ray --> UV ray --> visible --> infrared --> microwave --> radio
frequency
