The modern description, primarily mathematical, of the behavior of electrons in atoms.
What is The Quantum Mechanical Model?
100
True or False:
The wavelength and amplitude of light are inversely proportional to each other.
What is False? (wavelength and frequency are inversely proportional to each other)
100
The ways in which electrons are arranged in various orbitals around the nuclei of atoms.
What is electron configuration?
100
A convenient method for showing the electron configuration of an atom that involves writing the energy level and the symbol for every sublevel occupied by an electron.
What is shorthand notation?
100
The fixed energies an electron can have.
What are sublevels or energy levels?
200
The electron cloud is ____ dense where the probability of finding the electron is high, and vice versa.
What is more?
200
A wave’s height from zero to the crest.
What is amplitude?
200
True or False:
Spin is a quantum mechanical property of electrons and may be thought of as only clockwise.
What is False? (it may be clockwise or counterclockwise)
200
The correct shorthand notation is:
1s2 2s2 2p6 3s2 3p4 4s2
or
1s2 2s2 2p6 3s2 3p6
What is 1s2 2s2 2p6 3s2 3p6?
200
An atomic orbital may describe at most two electrons, each with opposite spin direction.
What is The Pauli Exclusion Principle?
300
A mathematical expression describing the probability of finding an electron at various locations; usually represented by the region of space around the nucleus where there is a high probability of finding an electron.
What is an atomic orbital?
300
The product of frequency and wavelength always equals a constant (c), ___________.
What is the speed of light?
300
Some actual electron configurations differ from those assigned using ____________ because half-filled sublevels are not as stable as filled sublevels, but they are more stable than other configurations.
What is The Aufbau Principle?
300
True or False:
In longhand notation, one electron enters each orbital until all the orbitals contain one electron with the same spin direction (all up arrows written first, then down arrows).
What is true?
300
An electron in the highest occupied energy level of an atom.
What is a valence electron?
400
True or False:
Each energy sublevel corresponds to an orbital of a different shape, which describes where the electron is likely to be found.
What is True?
400
A quantum of light; a discrete bundle of electromagnetic energy that interacts with matter similarly to particles.
What is a photon?
400
Electrons occupy orbitals of the same energy in a way that makes the number or electrons with the same spin direction as large as possible.
What is Hund's Rule?
400
The orbital missing from this configuration is:
1s2 2s2 2p6 3s2 3p6 4s2 4p6 5s2 4d10
What is 3d10? (between 4s2 and 4p6)
400
The amount of energy needed to move an electron from one energy level to another.
What is a quantum?
500
The principal quantum number always equals the number of _________ within that principal energy level.
What are sublevels?
500
The light emitted by an electron moving from a _____ to a _____ energy level has a frequency directly proportional to the energy change of the electron.
What is higher:lower
500
The rule that electrons occupy the orbitals of lowest energy first.
What is The Aufbau Principle?
500
True or False:
The orbitals for any sublevel of a principal energy level are always of equal energy.
What is true?
500
The pattern formed when light passes through a prism or diffraction grating to separate it into the different frequencies of light it contains.