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WorksheetsChemistry Test Review Chapter 5
Total questions: 41
Worksheet time: 1hrs 24mins
The set of frequencies of the electromagnetic waves emitted by the atoms of an element.
(a)
The minimum amount of energy that can be lost or gained by an atom
(a)
A form of energy that exhibits wavelike behavior as it travels through space
(a)
A three-dimensional region around the nucleus of an atom that describes an electron's probable location
(a)
The shortest distance between equivalent points on a continuous wave.
(a)
The lowest allowable energy state of an atom
(a)
A particle of electromagnetic radiation with no mass that carries a quantum of energy.
(a)
The emission of electrons from a metal's surface when light of a certain frequency chines on it
(a)
A figure indicating the relative sizes and energies of atomic orbitals
(a)
Which of the following best describes the Heisenberg uncertainty principle?
Light behaves like a particle ans like a wave.
The shorter the wavelength, the higher the frequency.
It is impossible to know both the velocity and position of a particle at the dame time.
You can measure an object without disturbing it.
Which of the following can you conclude based on the de Broglie equation?
Waves behave like particles.
Most particles are electrons.
All matter has an associated wavelength.
All matter behaves like particles.
When a potassium compound is placed in a flame, energy is released and a violet color is produced. The energy release is due to
the release of gamma rays from the nucleus
the return of excited electrons to lower energy levels
the movement of electrons to higher energy levels
the absorption of photons by the electrons
Which of these is the ground state electron configuration for an atom of fluorine (atomic number 9).
1s22s2
1s22s22p3
1s22s22p4
1s22s22p5
Niels Bohr's model of an atom helped to explain
particles passing through foil
spectral lines
the formation of isotopes
the properties of hydrogen
The wavelength of a wave is measured from
crest to crest
crest to trough
origin to crest
origin to trough
Which of the following electromagnetic waves has photons of the highest energy?
microwaves
infrared
x-rays
ultraviolet
What is the maximum number of electrons that can be present in each principal energy level of hydrogen?
n
n2
2n
2n2
The concept that all moving particles have wave characteristics is attributed to
de Brogile
Thomson
Heisenberg
Bohr
In the figure, why must the photon's wavelength increase after the collison?
The photon changes direction.
The photon changes speed.
The photon gives up some energy to the electrons.
The photon starts spinning.
In the figure, why are the dots beyond there boundary of the atomic orbital?
the boundary encloses the volume in which the electron is found 90% of the time
the boundary is three-dimensional, while the picture shows only two dimensions
experimental error
the boundary encloses the volume in which the electron is found 50% if the time
What is an electron dot structure?
An element symbol surrounded by dots representing its valence electrons.
An element symbol surrounded by its innermost electrons.
An element symbol with a positive charge.
A filled noble gas in brackets plus the remaining electron configuration expressed by filled orbitals.
Why does the 4s orbital begin to fill before the 3d orbital?
The 4s orbital is lower than the 3d orbital in the aufbau diagram.
s orbitals always fill before d orbitals
The 4s orbital is to the left of the 3d orbital in the diagram.
The 4s orbital has higher energy than the 3d orbital.
Which of the following statements expresses Hund's rule?
Electrons in orbitals must possess opposite spins.
Single electrons with the same spin must occupy each orbital before additional electrons with opposite spins are added.
Electrons with the same spin fill all orbitals.
P orbitals may contain up to 6 electrons.
The part of the electromagnetic spectrum that humans can see is the
infrared spectrum
ultraviolet spectrum
visible spectrum
a, b, and c
In the photoelectric effect, increasing the frequency of the light increases the __________ of the ejected electrons.
number
energy
size
wavelength
The ground state of hydrogen corresponds to the
zeroeth energy level
first energy level
second energy level
highest energy level
Which of the following statements is true?
Each set of d orbitals contains seven orbitals.
Each set of d orbitals can hold a maximum of 14 electrons.
The first energy level contains only s and p orbitals.
All s orbitals are spherically shaped.
What is the primary difference between the 1s and 2s orbitals?
shape
size
number of electrons
number of neutrons
In the Bohr model of the hydrogen atom, which of the following transitions results in the light you can see?
n=6 to n=1
n=6 to n=2
n=6 to n=3
n=6 to n=4
The principle that states each electron occupies the lowest energy orbital available is the
aufbau principle
uncertainty principle
exclusion principle
photoelectric principle
The valence orbitals in an atom are the
innermost orbitals
second energy level
d orbitals
outermost orbitals
How many valence electrons does a group 1A metal atom have?
1
2
3
4
What would be the proper noble gas notation for oxygen?
[Ne] 2s22p4
[Ne] 2s22p1
[He] 2s22p4
[He] 2s22p1
Given the electron dot diagram shown, what further information is needed to find the identity of element X?
the number of valence electrons
the period in which the element is found
the number of neutrons
the electric charge
There are a total of 5 different types of d-orbitals.
True
False
The unit for measuring the energy of a wave is Hertz.
True
False
The maximum number of allowed valence electrons in any atom is 8.
True
False
Energy is found only in specific discrete amounts, called quanta.
True
False
Which is the correct number of valence electrons in the element oxygen?
16
6
2
4
Which type of orbital is shown?
s
p
d
f
How many valence electrons does a group 1A metal atom have?
1
2
3
4
