CHEM 219 PRINCIPLES OF ORGANIC
CHEMISTRY EXAM SCRIPT 2026 MODULE 8
QUESTIONS AND SOLUTIONS GRADED A+
◉ Which of the following is true concerning successive ionizations of
an atom and its ions? Answer: Each successive ionization requires
increasing amounts of energy
◉ The energy of a photon equals its Planck's constant (h) multiplied
by the speed of light(c) and then divided by the wavelength. E =
hc/λ. If microwaves are changed to x-rays, what effect does this have
on the energy of the photon Answer: The energy of the photon
increases
◉ Photons are shone on a piece of metal and one electron is ejected
for each absorbed photon. What happens when the wavelength of
light is decreased? Answer: The ejected electrons would have
greater kinetic energy
◉ What type of light on the electromagnetic spectrum has the
highest energy per photon?
X-ray
, visible light
microwaves
Gamma waves Answer: Gamma waves
◉ Energy of a photon is ______ proportional to frequency, and _______
proportional to wavelength Answer: directly, inversely
◉ What is observed when a noble gas is heated and the emitted light
shone through a prism? Answer: individual lines of varying colors
Heating a noble gas promotes its electrons to excited energy states,
which then relax to emit discrete wavelengths of light. When shone
through a prism, this results in individual lines of varying colors.
◉ Bohr Model Answer: model of the atom in which electrons move
rapidly around the nucleus in paths called orbits
◉ Electromagnetic Energy Answer: a form of energy that travels
through space in the form of waves
◉ Quantum Theory Answer: describes mathematically the wave
properties of electrons and other very small particles
CHEMISTRY EXAM SCRIPT 2026 MODULE 8
QUESTIONS AND SOLUTIONS GRADED A+
◉ Which of the following is true concerning successive ionizations of
an atom and its ions? Answer: Each successive ionization requires
increasing amounts of energy
◉ The energy of a photon equals its Planck's constant (h) multiplied
by the speed of light(c) and then divided by the wavelength. E =
hc/λ. If microwaves are changed to x-rays, what effect does this have
on the energy of the photon Answer: The energy of the photon
increases
◉ Photons are shone on a piece of metal and one electron is ejected
for each absorbed photon. What happens when the wavelength of
light is decreased? Answer: The ejected electrons would have
greater kinetic energy
◉ What type of light on the electromagnetic spectrum has the
highest energy per photon?
X-ray
, visible light
microwaves
Gamma waves Answer: Gamma waves
◉ Energy of a photon is ______ proportional to frequency, and _______
proportional to wavelength Answer: directly, inversely
◉ What is observed when a noble gas is heated and the emitted light
shone through a prism? Answer: individual lines of varying colors
Heating a noble gas promotes its electrons to excited energy states,
which then relax to emit discrete wavelengths of light. When shone
through a prism, this results in individual lines of varying colors.
◉ Bohr Model Answer: model of the atom in which electrons move
rapidly around the nucleus in paths called orbits
◉ Electromagnetic Energy Answer: a form of energy that travels
through space in the form of waves
◉ Quantum Theory Answer: describes mathematically the wave
properties of electrons and other very small particles
