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Worksheetsquantum model
Total questions: 35
Worksheet time: 18mins
Electrons that have not been excited are said to be at:
high level
base line
set state
ground state
This shape is that of a...
s orbital
d orbital
p orbital
f orbital
The principle quantum number, n, represents the:
spin value
suborbital value
energy level
magnetic value
With each higher energy level, the electrons are
lower in energy
more stable
weaker
farther from the nucleus
How many electrons total are found in the f orbital?
2
6
10
14
Which of the following is NOT a possible pair of quantum numbers?
2p
2d
4p
4f
This is a ____ orbital
s
d
p
d
What is untrue about f orbitals?
first found at energy level 4
when all f orbitals of a given energy level are full, they may contain up to 14 electrons
there are 5 different orientations, or axes
each f orbital may hold an electron with a +1/2 spin and a -1/2 spin
The difference between an orbit and an orbital is:
an orbit is a set path, but an orbital has no dimension
an orbital is a set path, but an orbit cannot be defined
an orbit is a set path, but an orbital is a 3-dimensional region in which electrons may be found with high probability
there is no difference when it comes to electron configurations
Which is shape is correctly paired with its sublevel
sphere = d
flower = s
infinity or dumbbell = p
clover = f
How many ELECTRONS can fit within a d-subshell?
2
6
10
14
How many ELECTRONS can fit within a f-subshell?
2
6
10
14
How many ORBITALS does a d-subshell contain?
1
3
5
7
The maximum number of electrons allowed in the fourth energy level is
2
4
8
18
32
Electrons prefer to be in...
third energy level
highest energy level
2nd energy level
lowest possible energy level
Neon has 10 electrons. Those electrons are distributed in the energy levels like...
n=1 --> 2e- & n=2 --> 10e-
n=1 --> 0e- & n=2 --> 10e-
n=1 --> 2e- & n=2 --> 8e-
n=1 --> 2e- & n=2 --> 6e- & n=3 --> 2e-
Which sublevels are present in n=3?
s
s and p
s and d
s p d and f
s p and d
Who proposed that electrons are only found in specific, discrete circular orbits around the nucleus?
Albert Einstein
Erwin Schrodinger
Ernest Rutherford
Niels Bohr
Who used theoretical calculations and experimental results to devise and solve a mathematical equation describing the behavior of the electron in a hydrogen atom?
JJ Thomson
Niels Bohr
Erwin Schrodinger
James Chadwick
What is the difference in a 1s orbital and a 2s orbital?
The shape of the orbital
The size of the orbital
The number of electrons it can hold
None of the above
Which quantum number represents the shape of the orbital?
principal quantum number
azimuthal (angular momentum) quantum number
magnetic quantum number
spin quantum number
Which quantum number represents the orientation of the orbital?
principal quantum number
azimuthal (angular momentum) quantum number
magnetic quantum number
spin quantum number
Which form of radiation has the highest frequency?
radio waves
ultraviolet
x-ray
gamma
Heisenberg's Uncertainty Principle states that it is impossible to know both the ___________ and the __________ of a particle at the same time.
velocity, position
velocity, energy
position, energy
velocity, speed
One of the key understandings of quantum theory is that atoms emit energy in
random amounts.
specific amounts.
only the gamma range of the electromagnetic spectrum.
only the microwave range of the electromagnetic spectrum.
According to DeBroglie, electrons can act like
particles only.
waves only.
both waves and particles.
spoiled brats.
According to Heisenberg, what two things are impossible to know at the same time regarding an electron? Check both of the correct answers.
exact charge
velocity
mass
precise location
Because of Heisenberg's ideas about the atom, scientists modified the Bohr model of the atom. The new idea involved orbitals which are
two dimensional pathways.
actual "strings" on which the electrons travel like beads on a necklace.
three-dimensional regions of probability where electrons are most likely to be found.
a cell-like structure that contains the electrons.
According to the Aufbau principle, how do electrons fill the energy levels?
from highest to lowest energy.
from lowest to highest energy.
from f to s levels.
randomly.
The distance from tip to tip on a wave is the
Frequency
Wavelength
Amplitude
The longer the wavelength
The higher the frequency
The lower the frequency
The higher the energy
Energy is ____________ proportional to Frequency and ______________ proportional to wavelength.
directly, indirectly
directly, directly
indirectly, indirectly
indirectly, directly
Check all that apply about the wave in the picture above. (hint: 3 are correct)
High Frequency
Long wavelength
Short wavelength
High Energy
Low Energy
The modern day version of the atom with the electron cloud surrounding the nucleus is the
Bohr Model
Quantum Mechanical Model
The Einstein 2.0
Heisenberg Model
The basis of the quantum model of the atom is
That the electron is a wave
That the electron is a point particle
That the electron is both a particle and a wave
None of the above
