This is a timed quiz.
You have 10 minutes to complete the 20 questions in this quiz.
Which of the following did Democritus NOT believe about atoms?
They came in different shapes and sizes
They are divisible
Everything is made up of atoms and empty space
None of the above
Which scientist was the first to propose that atoms combined in specific proportions to create compounds?
Rutherford
Dalton
Thomson
Bohr
Thomson's concept of the atom was flawed because it didn't account for isotopes.
Thomson's '❌' model of the atom was conceptualized based on the results of the ❌ experiment. The experiment proved that atoms were ❌ by the negative part of a magnetic field. Based on these observations, Thomson realized that ❌ existed inside the atom.
When the gold foil experiment was performed, 1/10,000 alpha particles were deflected.
Which restriction(s) applied to Rutherford's model of the atom?
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
The of light emitted by an atom is dependent on the of the quantum jumps that the atom's make.
Who proposed the Uncertainty Principle?
Heisenberg
de Broglie
Schrodinger
The Uncertainty Principle states that we cannot know both the position energy( position, energy ) and momentum shape( momentum, shape ) of a particle at a given time.
What idea about the structure of an atom did Louis de Broglie propose?
He came up with the quantum mechanical model of the atom
He created equations to indicate the probable location of an atom
He hypothesized that the dual-wave properties of light also apply to matter
6.626 x 10^-34 is 's constant
Why is the electron orbital diagram incorrect?
It violates Hund's Rule
It violates the Aufbau Principle
It violates the Pauli Exclusion Principle
The diagram is not incorrect
The l value of a 4f electron is 3.
All four quantum numbers for the 2nd electron in a 3p orbital are:
n = 3, l = 2, ml = 0, ms = 1/2
n = 3, l = 2, ml = 0, ms = -1/2
n = 3, l = 1, ml = 0, ms = 1/2
n = 3, l = 1, ml = 0, ms = -1/2
Hydrogen bonding is the strongest type of intramolecular bond
Which type of intermolecular bonding is the weakest?
Dipole-Dipole
London Forces
Hydrogen Bonding
Wavelength and frequency are inversely directly not( inversely, directly, not ) related, wavelength and energy are inversely directly not( inversely, directly, not ) related, and energy and frequency are directly inversely not( directly, inversely, not ) related.