Quantum Mechanical Model of The Atom Flashcards
The energy emitted in the form of waves having an oscillating electric field component that is perpendicular to magnetic field component.
Electromagnetic radiation
Highest point of a wave (points W and Y)
Crest or Peak
Lowest point of a wave (point X and Z)
Trough
Distance between a grass and a trough in the midline of the wave (thick dashed line)
Amplitude
1/2 the vertical distance from a crest to the nearest trough
Amplitude
Related to the intensity (I) of a wave (radiant power per unit area)
Amplitude
Distance between two successive crests for two consecutive troughs
Wavelength
Number of wave cycles propagating per second
Frequency
Number of crest or number of trout passing through a certain point per second
Frequency
Inversely proportional to the wavelength.
Frequency
Time it takes for one cycle of a wave to pass through a point.
Period (T)
Reciprocal of the frequency
Period (T)
Number of cycles per unit distance
Wavenumber
Reciprocal of wavelength
Yours when waves combine. It can be constructive or destructive.
Interference
Results with with combine in phase.
Constructive Interference
Occurs when two waves combine out of phase
Destructive interference
Bending of waves when they pass it through a slip or aperture.
Diffraction
Process of “bouncing back” of a beam of light waves after it strikes the surface.
Reflection
The bending of waves when they pass from one on other medium.
Refraction
The transfer of energy of waves in to matter. This manifested by the lowering of intensity after the wave passes through an object.
Absorption
Occurs when light is absorbed by matter, and it is re-emitted in different directions. This phenomenon can be observed in daytime light.
Scattering
Classical physics claims that the intensity of light be committed by a heated body called a____________ increase towards infinity as temperature increased
Blackbody
The limitation of the classical model at lower wavelength is called the______________.
Ultraviolet catastrophe
Came up with a theory as healing to the phenomenon of ultraviolet catastrophe.
Max Planck
He propose that the energy that an atom or molecule can absorb or emit are multiples of an energy value which hair referred to ask quantum.
Max Planck
An atom or molecule can absorb or are multiple of an energy value.
Quantum
In the blank’s quantum theory, the energy associated with a quantum can be represented mathematically as:
E=hv
He observed the phenomenon called photoelectric effect.
Heinrich Hertz
Electrons can be ejected from a metal surface if life is eradicated on it, provided that the light has a frequency that exceeds the threshold frequency that is characteristic to the metal.
Photoelectric Effect
In 1905 he introduced that light consist of quanta or particles called photons
Albert Einstein
Light consist of oscillating waves
Light as a Wave
Light consist of particles called photons.
Light as a Particle
