4759827
Descripción
Test por Georgia Dilworth, actualizado hace más de 1 año
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Creado por Georgia Dilworth
hace más de 8 años
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Pregunta 1
Pregunta
Which of the following did Democritus NOT believe about atoms?
Respuesta
-
They came in different shapes and sizes
-
They are divisible
-
Everything is made up of atoms and empty space
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None of the above
Pregunta 2
Pregunta
Which scientist was the first to propose that atoms combined in specific proportions to create compounds?
Respuesta
-
Rutherford
-
Dalton
-
Thomson
-
Bohr
Pregunta 3
Pregunta
Thomson's concept of the atom was flawed because it didn't account for isotopes.
Respuesta
- True
- False
Pregunta 4
Pregunta
Thomson's '[blank_start]chocolate chip cookie[blank_end]' model of the atom was conceptualized based on the results of the [blank_start]cathode ray[blank_end] experiment. The experiment proved that atoms were [blank_start]repulsed[blank_end] by the negative part of a magnetic field. Based on these observations, Thomson realized that [blank_start]electrons[blank_end] existed inside the atom.
Respuesta
-
chocolate chip cookie
-
beehive
-
cathode ray
-
gold foil
-
repulsed
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attracted
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electrons
-
protons
-
neutrons
-
sub-atomic particles
Pregunta 5
Pregunta
When the gold foil experiment was performed, 1/10,000 alpha particles were deflected.
Respuesta
- True
- False
Pregunta 6
Pregunta
Which restriction(s) applied to Rutherford's model of the atom?
Respuesta
-
Did not account for isotopes
-
If model was accurate, electrons should lose energy and collapse into themselves, causing the entire atom to collapse
-
Did not account for the behaviour of certain gasses
-
Model only works for atoms with one electron
Pregunta 7
Pregunta
The [blank_start]colour[blank_end] of light emitted by an atom is dependent on the [blank_start]size[blank_end] of the quantum jumps that the atom's [blank_start]electrons[blank_end] make.
Respuesta
-
colour
-
size
-
electrons
Pregunta 8
Pregunta
Who proposed the Uncertainty Principle?
Respuesta
-
Heisenberg
-
Bohr
-
de Broglie
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Schrodinger
Pregunta 9
Pregunta
The Uncertainty Principle states that we cannot know both the [blank_start]position[blank_end] and [blank_start]momentum[blank_end] of a particle at a given time.
Respuesta
-
position
-
energy
-
momentum
-
shape
Pregunta 10
Pregunta
What idea about the structure of an atom did Louis de Broglie propose?
Respuesta
-
He came up with the quantum mechanical model of the atom
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He created equations to indicate the probable location of an atom
-
He hypothesized that the dual-wave properties of light also apply to matter
-
None of the above
Pregunta 11
Pregunta
6.626 x 10^-34 is [blank_start]Planck[blank_end]'s constant
Respuesta
-
Planck
Pregunta 12
Pregunta
Why is the electron orbital diagram incorrect?
Respuesta
-
It violates Hund's Rule
-
It violates the Aufbau Principle
-
It violates the Pauli Exclusion Principle
-
The diagram is not incorrect
Pregunta 13
Pregunta
Why is the electron orbital diagram incorrect?
Respuesta
-
It violates the Aufbau Principle
-
It violates the Pauli Exclusion Principle
-
It violates Hund's Rule
-
The diagram is not incorrect
Pregunta 14
Pregunta
Why is the electron orbital diagram incorrect?
Respuesta
-
It violates the Aufbau Principle
-
It violates the Pauli Exclusion Principle
-
It violates Hund's Rule
-
The diagram is not incorrect
Pregunta 15
Pregunta
Why is the electron orbital diagram incorrect?
Respuesta
-
It violates the Aufbau Principle
-
It violates the Pauli Exclusion Principle
-
It violates Hund's Rule
-
The diagram is not incorrect
Pregunta 16
Pregunta
The l value of a 4f electron is 3.
Respuesta
- True
- False
Pregunta 17
Pregunta
All four quantum numbers for the 2nd electron in a 3p orbital are:
Respuesta
-
n = 3, l = 2, ml = 0, ms = 1/2
-
n = 3, l = 2, ml = 0, ms = -1/2
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n = 3, l = 1, ml = 0, ms = 1/2
-
n = 3, l = 1, ml = 0, ms = -1/2
Pregunta 18
Pregunta
Hydrogen bonding is the strongest type of intramolecular bond
Respuesta
- True
- False
Pregunta 19
Pregunta
Which type of intermolecular bonding is the weakest?
Respuesta
-
Dipole-Dipole
-
London Forces
-
Hydrogen Bonding
-
None of the above
Pregunta 20
Pregunta
Wavelength and frequency are [blank_start]inversely[blank_end] related, wavelength and energy are [blank_start]inversely[blank_end] related, and energy and frequency are [blank_start]directly[blank_end] related.
Respuesta
-
inversely
-
directly
-
not
-
inversely
-
directly
-
not
-
directly
-
inversely
-
not
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