Quantized Model of the Atom Flashcards
Electromagnetic radiation
oscillating, perpendicular electric and magnetic fields that travel through space and can transfer energy (waves)
Photons
small, invisible quantities of energy
Electronic transition
a change from one electronic energy to another
Ground state
lowest energy electronic state of an atom
Excited state
highest energy electronic state of an atom
Quantum mechanics
a model that uses both wave and particle analogies to describe atomic-scale matter
What does a positive energy difference in an electronic transition indicate?
Absorption
What does a negative difference in electronic transition indicate?
Emission
Heisenberg uncertainty principle
it is impossible to simultaneously determine the exact position and the exact momentum of an atomic level particle (electrons)
What is the wave function squared equivalent to? (Ψ^2)
the probability of finding an electron at a specific position
Electron density
3D distribution of electron probability
Orbital
Wave functions and their electron density distribution
Standing waves
amplitudes not evolving and occur from confined waves (the type of waves electrons are)