# Chemistry 3 Exam Review

 What is the equation that relates the speed of light to its frequency and wavelength? c = v • λ(p. 270) What is the speed of light in m/s? c = 3.0 •108 m/s What is Planck's Constant? h = 6.626 •10-34 J•s What are the four quantum numbers and give a brief description of what they indicate? 1) The principal quantum number (n) indicates size of the orbital. (1, 2, 3, etc.)2) The angular quantum number (l) is related to the shape of the orbital. (from 0 to n-1)3) The magnetic quantum number (ml) prescribes the orientation of the orbital. (-l through 0 to l)4) The electron-spin quantum number (ms) describes the spin of the electron itself, not the orbital. (-1/2 or +1/2) What is the equation used when determining the smallest change in an atom's energy? ∆E = hv (p. 274) What is the equation used when calculating the wavelength of any line in the H atom spectrum (Rydberg equation)? 1/λ = R(1/(n1)2 -1/(n2)2)where n1 and n2 are positive integers and n2 > n1.(p. 277) What is the equation used for finding the difference between two energy levels in the H atom? ∆E = Efinal - Einitial = -2.18 •10-18 J(1/(nfinal)2 - 1/(ninitial)2)(p. 279) What is the equation used for calculating the wavelength of any moving particle (de Broglie wavelength)? λ = h/ mu (Use λ = h/ p when finding momentum. Where p is momentum)(p. 284) What equation is used for finding the uncertainty in position or speed of a particle (Heisenberg uncertainty principle)? ∆x •m∆u ≥ h/4π(p. 286) What is the relationship used for defining the energy of sublevels n terms of the angular momentum quantum number (l value)? Order of sublevel energies: s < p < d < f What is the equation used for relating the energy of attraction to the lattice energy? Electrostatic energy ∂ (cation charge • anion charge) /(cation radius + anion radius) ∂ ∆Hlattice degree What is the equation used for calculating heat of reaction from enthalpy changes or bond energies? ∆Hrxn = ∑∆Hreaction bonds broken + ∑∆Hproduct bonds formed Or∆Hrxn = ∑∆BEreaction bonds broken - ∑∆BEproduct bonds formed(p. 359) What is the definition of electromagnetic radiation? (p. 269) What is the definition of frequency (v)? (p.270) What is the definition of wavelength (λ)? (p. 270) What is the definition of amplitude? (p.270) What is the definition of electromagnetic spectrum? (p.271) What is the definition of infrared (IR)? (p.271) What is the definition of ultraviolet (UV)? (p.271) What is the definition of refraction? (p.272) What is the definition of diffraction? (p. 274) What is the photoelectric effect? (p. 274) What is the definition of photon? (p. 275) What is the definition of line spectrum? (276) What is the definition of stationary state? (277) What is the definition of ground state? (278) What is the definition of excited state? (278) What is the definition of spectrophotometry? (281) What is the definition of emission spectrum? (281) What is the flame test? (281) What is the definition of absorption spectrum? (281) What is de Broglie wavelenght? (284) What is the definition of wave-particle duality? (286) What is the definition of uncertainty principle? (286) What is the quantum principle? (286) What is the Schrödinger equation? (287) What is a node? (293) What is periodic law? (303) What is the exclusion principle? (305) What is the definition of shielding? (306) What is the effective nuclear charge (Zeff)? (306) What is the aufbau principle? (308) What is Hund's rule? (309) What are transition elements? (313) What is the difference between inner (core), outer, and valence electrons? (315) What are inner transition elements? (316) What are lanthanides? (316) What are actinides? (316) What is the metallic radius? (317) What is the covalent radius? (318) What is ionization energy (IE)? (321) What is electron affinity (EA)? (324) What is the definition of amphoteric? (327) What is the definition of isoelectronic? (328) What is the definition of pseudo-noble gas configuration? (328) What is the definition of paramagnetism? (330) What is the definition of diamagnetism? (330) What is the ionic radius? (332) What is the difference between ionic, covalent, and mettalic bonding? (342-343) What is the octet rule? (344) What is lattice energy (∆Hlattice)? (346) What is the Born-Haber cycle? (346) What is Coulomb's law? (348) What is bond energy (BE)? (353) What is infrared spectroscopy? (357) What is the definition of electronegativity (EN)? (363) What is electronegativity difference (∆EN)? (366) What is the electron-sea model? (369) What is the definition of an alloy? (369) Authorjamalel2 ID15718 Card SetChemistry 3 Exam Review DescriptionA review of a few key terms and concepts in chapters 7-9 of the textbook, Chemistry The Molecular Nature of Matter and Change 5e. Updated2010-04-22T20:31:52Z Show Answers