chem chapter 3 quiz- quantum mechanical model of the atom

sunlight --> prism --> continuous spectrum
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λLambda Represents wavelength____________- is the vertical height of a crest (or depth of the trough)amplitude______________ is the number of λ passing a given point in 1 secondFrequency (looks sort of like a cursive v)Wavelength and amplitude are ____________ propertiesindependentThe wavelength of light determines its _________________ (intensive physical property)colorThe amplitude, or ________________ determines its brightness (extensive physical property)intensityWavelength and frequency are ____________ proportional (_______________ = ______________)inversely 1nm = 1x10^9m______ light is a mixture of all the colors of visible light. -A _____________ spectrum -Red, orange, yellow, green, blue, indigo, violetWhite continuousWhen an object absorbs some of the wavelengths of white light and reflects others, it appears colored; the observed color is a mixture of the colors _________________-reflectedparticles & rays emitted from the nucleus of a radioactive elementradiationVisible light (400 to 700 nm) comprises only a small fraction of all the wavelengths of light, called the ___________________________electromagnetic spectrumShorter wavelength (higher frequency) light has ____________________.Higher energy*Radio waves* have the _____________ energylowest*Gamma rays* have the ____________ energyhighest______________________ electromagnetic radiation (e.g., UV, x-ray, gamma) can potentially damage biological moleculesHigh energyThe interaction between waves (e.g., electromagnetic, ocean) is called __________interference2 interference typesConstructive Interference & Destructive Interference_________________________-waves that interact so that they add to make a larger wave are said to be *in phase*Constructive interference_________________________- waves that interact so that they cancel each other are said to be *out of phase*Destructive interferenceWhen traveling waves encounter an obstacle or opening in a barrier that is about the same size as the wavelength, they bend around it; this is called _____________diffraction__________________ DO NOT diffracttraveling particlesThe diffraction of light through two slits separated by a distance comparable to the wavelength results in an __________________ pattern of the diffracted wavesInterferenceAn interference pattern is a characteristic of _______ light wavesallMax Planck (1900) proposed that the energy of light waves existed as _________________, "________"discrete packets "quanta"E=hv where h is ______________, 6.63x10^-34 JsPlanck's constant (E=energy & v is frequency)A flow of electronselectricitya packet of lightphotonEinstein used the concept of quantization to explain _________________________photoelectric effect____________ developed a model of the atom to explain where the electrons are and how the atom changes when it undergoes energy transitionsBohr (The Bohr Model of the Atom)Bohr's major idea was that the energy of the atom was _______________, and that the amount of energy in the atom was related to the electron's position in the atomquantized(Bohr's Model) -The electrons travel in orbits that are at a ________ distance from the nucleusfixed(Bohr's Model) -the __________ of the electron was proportional to the distance the orbit was from the nucleusenergy(Bohr's Model) -____________ electrons (those with 'extra' energy) "_________" from their original orbit to one further from the nucleus. The atom becomes ___________. Electrons emit radiation when they "___________" from an orbit with higher energy down to an orbit with lower energy -the emitted radiation is a _______ of light -the distance between the orbits determines the energy of the photon of light producedExcited Jump Unstable Face Photon Distance(Bohr's Model) -____________ electrons (those with 'extra' energy) "_________" from their original orbit to one further from the nucleus. The atom becomes ___________. Electrons emit radiation when they "___________" from an orbit with higher energy down to an orbit with lower energy -the emitted radiation is a _______ of light -the ___________ between the orbits determines the energy of the photon of light producedExcited Jump Unstable Face Photon DistanceDe Broglie predicted that the wavelength of a particle was inversely proportional to its _____________ (mass x velocity)momentumBecause the electron is so small, its wave character is ______________ De Broglie relation :significant λ = h/mvElectron diffraction -If electrons behave only like particles, there should be only ___ bright spots on the target2Proof that the electron had _______________ came a few years later with eh demonstration that a *beam of electrons would produce an interference pattern the same as waves do*wave natureProblems with Bohr's Model -Could only be proven mathematically for _______ atom -_______________________ states that it is impossible to determine both the location and the momentum (or energy) of an electron at the same time -Because we cannot know both the position and velocity of an electron, we cannot predict the ______ it will folow -The best we can do is to describe the probability an electron will be found in a particular region using statistical functions = ______________-Hydrogen Heisenberg's Uncertainty Principle -Path atomic orbitalSchrödinger's EquationHψ = EψSchrödinger's equation (Hψ = Eψ) allows us to calculate the probability of finding an electron with a particular amount of ____________ at a particular ___________ in the atomenergy locationSolutions to Schrodinger's equation produce many, _________________wave functions, ψA plot the solutions to Schrodinger's equation represents an _____________, a probability distribution map of. region where the electron is likely to be found?10 fill in the blank & 3 work problems