Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
Amplitude
|
the height of a wave’s crest
|
|
Atomic emission spectrum
|
the pattern formed when light passes through a prism or diffraction grating to separate it into the different frequencies of light it contains
|
|
Atomic orbital,
|
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=
|
|
Aufbau principle
|
, the rule that electrons occupy the orbitals of lowest energy first=
|
|
Electromagnetic radiation
|
, energy waves that travel in a vacuum at a speed of 2.998 X 108m/s; includes radio waves, microwaves, infrared waves, visible light, ultraviolet waves, X-rays, and gamma rays=
|
|
Electron configurations
|
the arrangement of electrons of an atom in its ground state into various orbitals around the nuclei of atoms
|
|
Energy levels
|
the specific energies an electron in an atom or other system can have=
|
|
Frequency
|
the number of wave cycles that pass a given point per unit of time; frequency and wavelength are inversely proportional to each other
|
|
ground state
|
the lowest possible energy of an atom described by quantum mechanics
|
|
Heisenberg uncertainty principle
|
it is impossible to know exactly both the velocity and the position of a particle at the same time
|
|
hertz
|
the unit of frequency, equal to one cycle per second
|
|
hund's rule
|
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=
|
|
Pauli exclusion principle,
|
an atomic orbital may describe at most two electrons, each with opposite spin direction=
|
|
Photons
|
a quantum of light; a discrete bundle of electromagnetic energy that interacts with matter similarly to particles
|
|
quantum
|
the amount of energy needed to move an electron from one energy level to another
|
|
Quantum mechanical model,
|
the modern description, primarily mathematical, of the behavior of electrons in atoms=
|
|
Spectrum
|
wavelengths of visible light that are separated when a beam of light passes through a prism; range of wavelengths of electromagnetic radiation
|
|
wavelength
|
the distance between adjacent crests of a wave
|