CHEM 219 UPDATE EXAM #2 2025
COMPLETE CHOICE QUESTIONS BANK
WITH VERIFIED ANSWERS,DETAILED
EXPLANATIONS AND 100% GUARANTEE
PASS GRADE A+ (LATEST EDITION!!!!!)
Energy of a photon is ______ proportional to frequency, and
_______ proportional to wavelength - THE CORRECT ANSWER-
directly, inversely
What is observed when a noble gas is heated and the emitted
light shone through a prism? - THE CORRECT 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 - THE CORRECT ANSWER-model of the atom in which
electrons move rapidly around the nucleus in paths called
orbits
Electromagnetic Energy - THE CORRECT ANSWER-a form of energy
that travels through space in the form of waves
, Quantum Theory - THE CORRECT ANSWER-describes mathematically
the wave properties of electrons and other very small particles
Periodic Properties - THE CORRECT ANSWER-properties whose values
can be predicted based on the element's position on the
periodic table
Which periodic trend quantifies the amount of energy required
to remove an electron from a neutral, gaseous atom? - THE
CORRECT ANSWER-Ionization energy is the amount of energy
required to remove an electron from a neutral, gaseous atom
atomic radius trend - THE CORRECT ANSWER-The atomic radius
increases as you move down the periodic table and to the left.
Tantalum is the furthest to the right of this list and nearer the
top and it would be expected to have the smallest atomic radius
ionization energies - THE CORRECT ANSWER-amount of energy a
gaseous atom or ion must absorb to lose its outermost electron.
In general, first ionization energy decreases down a group and
increases across a period
The first five ionization energies of an element are as follows (in
kJ/mol): 577.9, 1820, 2750, 11600, 14800. Which of the
following elements is most likely to have these ionization
energy values? - THE CORRECT ANSWER-D) Al
there is a large increase in ionization energies from the third to
the fourth ionization. This suggests it is relatively easy to
remove three electrons.
COMPLETE CHOICE QUESTIONS BANK
WITH VERIFIED ANSWERS,DETAILED
EXPLANATIONS AND 100% GUARANTEE
PASS GRADE A+ (LATEST EDITION!!!!!)
Energy of a photon is ______ proportional to frequency, and
_______ proportional to wavelength - THE CORRECT ANSWER-
directly, inversely
What is observed when a noble gas is heated and the emitted
light shone through a prism? - THE CORRECT 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 - THE CORRECT ANSWER-model of the atom in which
electrons move rapidly around the nucleus in paths called
orbits
Electromagnetic Energy - THE CORRECT ANSWER-a form of energy
that travels through space in the form of waves
, Quantum Theory - THE CORRECT ANSWER-describes mathematically
the wave properties of electrons and other very small particles
Periodic Properties - THE CORRECT ANSWER-properties whose values
can be predicted based on the element's position on the
periodic table
Which periodic trend quantifies the amount of energy required
to remove an electron from a neutral, gaseous atom? - THE
CORRECT ANSWER-Ionization energy is the amount of energy
required to remove an electron from a neutral, gaseous atom
atomic radius trend - THE CORRECT ANSWER-The atomic radius
increases as you move down the periodic table and to the left.
Tantalum is the furthest to the right of this list and nearer the
top and it would be expected to have the smallest atomic radius
ionization energies - THE CORRECT ANSWER-amount of energy a
gaseous atom or ion must absorb to lose its outermost electron.
In general, first ionization energy decreases down a group and
increases across a period
The first five ionization energies of an element are as follows (in
kJ/mol): 577.9, 1820, 2750, 11600, 14800. Which of the
following elements is most likely to have these ionization
energy values? - THE CORRECT ANSWER-D) Al
there is a large increase in ionization energies from the third to
the fourth ionization. This suggests it is relatively easy to
remove three electrons.
