Atomic Emission Spectra and the Bohr Model 1.2
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20 Terms
Amplitude
The height of a wave from the center of its oscillation to the top, or crest.
Wavelength (λ)
The distance between two wave crests.
Frequency (v)
The number of wave cycles that pass a given point per second, measured in hertz (Hz).
Inverse Relationship
As the wavelength of a wave decreases, the frequency increases, and vice versa.
Electromagnetic Radiation
Waves of energy that travel through a vacuum at a speed of 2.998 x 10^8 m/s.
Electromagnetic Spectrum
The range of all types of electromagnetic radiation, ordered from lowest to highest frequency.
Speed of Light (c)
The constant product of frequency and wavelength, expressed as c = λv.
Atomic Emission Spectrum
The pattern formed when light emitted by an element is separated into different wavelengths.
Spectroscope
A tool that uses a prism to separate light into its individual colors.
Elemental Fingerprints
Unique atomic emission spectra for each element, similar to a person's fingerprint.
Energy Levels
Fixed energies that electrons can have in an atom, described in Bohr's model.
Quantum of Energy
The specific amount of energy required for an electron to move between energy levels.
Ground State
The lowest possible energy level of an electron in an atom.
Excited State
A higher energy level that an electron occupies after absorbing energy.
Planck’s Constant (h)
A value (6.626 x 10^-34 Joule-seconds) that relates the energy of a photon to its frequency.
Quantized Energy
The concept that energy levels in atoms are discrete, not continuous.
Bohr Model
A simplified representation of the atom where electrons move in circular orbits around the nucleus.
Emission Spectra Lines
Specific wavelengths and frequencies of light emitted as electrons transition between energy levels.
Distinct Wavelengths
The unique wavelengths of light emitted by each element due to its specific energy level differences.
Modern Atomic Theory
The ongoing development of atomic structure understanding beyond Bohr's initial model.