CHEMISTRY I /CHEM 103 MIDTERM EXAM
2025/2026 BANK COMPLETE QUESTIONS AND
ANSWERS ACCURATE ACTUAL EXAM WITH
FREQUENTLY TESTED QUESTIONS AND STUDY
GUIDE / EXPERT VERIFIED FOR GUARANTEED
PASS/ALREADY GRADED A+
What is the relationship between light intensity and
emitted electrons? - ....ANSWER...Intensity is directly
proportional to the amount of electrons emitted.
What is the relationship between amount of photons and
number of electrons emitted? - ....ANSWER...Every one
photon can at most eject one electron.
What is the equation for energy of a photon? -
....ANSWER...Bonding Energy of electron + Kinetic
energy of electron
,Do the characteristics of light exhibit particle or wave like
behaviors. - ....ANSWER...Light exhibits behaviors similar
to both particles and waves.
What is the relationship between frequency and energy? -
....ANSWER...Frequency is directly proportional to energy.
What is the relationship between frequency and number of
electrons emitted? - ....ANSWER...Frequency is directly
proportional to number of electrons emitted.
What is a black body? - ....ANSWER...theoretical object
that absorbs 100% of the radiation that falls on it, and does
not reflect or transmit any radiation
What kind of spectrum do photons produce? -
....ANSWER...Photons produce a continuous spectrum
which is a series of unbroken wave lengths.
What is ground state? - ....ANSWER...Ground state is the
lowest energy level for an electron.
,What is the energy of an emitted photon? -
....ANSWER...The energy of a photon is equal to the
change in energy level of the electron. If the photon is
emitted that means the energy level decreased.
What is a quantum of energy? - ....ANSWER...A photon
released or absorbed due to the change in energy state of an
electron.
When is a photon absorbed? - ....ANSWER...A photon is
absorbed when an electron gains energy.
How does Coulombs law relate to electron energy levels. -
....ANSWER...The two charges in coulombs law can be the
nucleus and the electron in question and r is the distance
between them.
What is the relationship between the energy level and
distance from the nucleus? - ....ANSWER...As the energy
level increases so does the distance from the nucleus.
, What is constructive interference? - ....ANSWER...When
waves perfectly align with one another the amplitude
increases adding the two original waves together. It is the
opposite of pure destructive wavelengths which cancels
each other out.
What is the relationship between wave length and distance
between fringes? - ....ANSWER...They are directly
proportional.
How does De Broglie represent electrons? -
....ANSWER...He says the are like a circular standing
wave.
What does the slit experiment show about electrons? -
....ANSWER...That they have wave like behavior.
Are electrons particles or waves? -
....ANSWER...Electrons are particles that move like
waves.