Chemistry, 112 (Chapter 5) Flashcards
The height of a waves crest
Amplitude
Pattern formed when light passes through a prism/diffraction grating to separate it into different frequencies of light
Atomic Emission Spectrum
Mathematical expression describing probability of finding an electron at various locations. Usually represented by region of space around nucleus with high probability of finding an electron
Atomic orbital
The rule that electrons occupy the orbitals with lowest energy first.
Aufbau principle
Energy waves that travel in a vacuum speed at a speed of 2.998 x 10^8 m/s
Electromagnetic Radiation
Arrangement of electrons of an atom in its ground state into various orbitals around the nuclei of atoms
Electron configuration
The specific energies an electron in an atom or other system can have
Energy levels
Number of wave cycles that pass a given point per unit of time; frequency and wavelength are inversely proportional to each other
Frequency
Lowest possible energy an atom described by quantum mechanics
Ground state
Impossible to know both velocity and position of a particle at the same time
Heisenberg uncertainty principle
Unit of frequency which is equal to one cycle per second
Hertz
Electrons occupied by same energy that makes the number of electrons with same spin direction as large as possible
Hunds rule
Atomic orbital may describe at most 2 electrons with opposite spin directions
Pauli exclusion principle
Quantum of light; electromagnetic energy that interacts with matter similarly to particles
Photons
Amount of energy needed to move an electron from one level to another
Quantum
