CP Workbook
The Atom and the Quantum
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To say that light is quantized means that light is made up of
elemental units
waves
Compared to photons of low-frequency light, photons of higher-frequency light have more
energy
speed
quanta
The
photoelectric effect
supports the
wave model of light
particle model of light
The photoelectric effect is evident when light shone on certain photosensitive materials ejects
photons
electrons
The photoelectric effect is more effective with violet light than with red light because the photons of violet light
resonate with the atoms in the material
deliver more energy per photon to the material
are more numerous
According to
deBroglie's wave model
of matter a beam of light and a beam of electrons
are fundamentally different
are similar
According to deBroglie, the greater the speed of an electron beam, the
greater is its wavelength
shorter is its wavelength
The
discreteness of the energy levels of electrons
about the atomic nucleus is best understood by considering the electron to be a
wave
particle
Heavier atoms are not appreciably larger in size than lighter atoms. The main reason for this is because the greater nuclear charge
pulls surrounding electrons into tighter orbits
holds more electrons about the atomic nucleus
produces a denser atomic structure
Whereas in the everyday macro-world the study of motion is called mechanics, in the micro-world the study of quanta is called
Newtonian mechanics
Quantum mechanics
Related Documents
Lab:
Labs -
A Photoelectric Effect Analogy
Labs -
Basic Particles
Labs -
Experimental Radius
Labs -
Hydrogen Spectrum
Labs -
Hydrogen Spectrum
Labs -
Mass of an Electron
Labs -
Mass of the Top Quark
Labs -
Mirror Symmetry
Labs -
Quantized Mass
Labs -
Radiation of a Metal Cylinder
Labs -
Using Young's Equation - Wavelength of a Helium-Neon Laser
Resource Lesson:
RL -
An Outline: Dual Nature of Light and Matter
RL -
Atomic Models and Spectra
RL -
Derivation of Bohr's Model for the Hydrogen Spectrum
RL -
Energy-Level Diagrams
RL -
Excitation
RL -
Famous Discoveries and Experiments
RL -
Famous Discoveries: Bohr Model
RL -
Famous Discoveries: de Broglie Matter Waves
RL -
Famous Discoveries: The Franck-Hertz Experiment
RL -
Famous Discoveries: The Photoelectric Effect
RL -
Famous Experiments: Davisson-Germer
RL -
Famous Experiments: Michelson-Morley
RL -
Famous Experiments: Millikan's Oil Drop
RL -
Famous Experiments: The Compton Effect
RL -
Famous Experiments: The Discovery of the Neutron
RL -
Nuclear Reaction
RL -
What is Mass?
REV -
Orbitals
Worksheet:
APP -
Eternally Bohring
APP -
Nuclear Flu
APP -
The Science Fair
APP -
What's My Line
CP -
Atomic Nature of Matter
CP -
Atomic Nucleus and Radioactivity
CP -
Balancing Nuclear Equations
CP -
Natural Transmutations
CP -
Nuclear Fission and Fusion
CP -
Radioactive Half Life
NT -
Atomic Number
NT -
Beta Decay
NT -
Binding Energy
NT -
Black Holes
NT -
Electrostatic Attraction
NT -
General Relativity
NT -
Helium Balloons
NT -
Hot Springs
NT -
Hydrogen Atom
NT -
Hydrogen Fusion
NT -
Nuclear Equations
NT -
Photoelectric Effect
NT -
Radiant Energy
NT -
Radioactive Cookies
NT -
The Ax Handle
NT -
Uranium Decay
NT -
Uranium Fission
RL -
Chapter 3: Electrons
WS -
Atomic Models and Spectra
WS -
Energy Level Diagrams
WS -
Parallel Reading - The Atom
WS -
Rotational and Reflection Symmetries
WS -
Standard Model: Particles and Forces
TB -
38A: Atomic Physics
TB -
Half-Life Properties
Paul G. Hewitt
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