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Chem 2045 test 2
Question | Answer |
---|---|
Maxwell | Theory of EM waves |
Thomson | Plum pudding model |
Bohr | Planetary model |
Lenard | Studied the photoelectric effect |
Hertz | Discovered the photoelectric effect |
Heisenberg | Uncertainty principle |
Debroglie | Proposed matter waves |
Sommerfield | Elliptical orbits in Bohr model |
Schroedinger | Wave mechanics |
Foucault | Speed of light in air> water |
Becquerel | Discovered radioactivity |
Davisson, Germer | Exp. confirmed wave side of electron |
Newton | Earliest particles theory of light |
Einstein | Explained the photoelectric effect |
Huygens | Earliest wave theory of light |
Planck | Introduced the idea of Quanta |
Pauli | Exclusion principle |
Dirac | Most abstract quantum theory |
Rutherford | Nuclear model of the atom |
Young | Interference of light |
1st E.A. | Energy change when a gaseous atom gains an electron |
Quantum stability | Half and completely filled sublevels are extra stable |
Dispersion | Different λ bend at different angles |
Metastable state | Excited state with long lifetime |
Wavelength | Peak to peak distance in a wave |
Phosphorescence | Absorption of high energy with a delayed release of lower energy |
Quantum | Particles of energy |
Fluoresence | Absorption of high energy followed by immediate release of lower energy |
Frequency | # waves passing a given pt in one S |
Relativistic effect | Energy change when a gaseous atom gains an electron |
Ground state | All e- are in lowest possible energy level |
Valence e- | S and P electrons in the outer level |
Isoelectonic | Having the same e- configurations |
Ionization energy | Energy required to remove outer e- |
Excited state | One or more e- are not in the lowest possible energy level |
Order of discovery | e-, p, n |
Gold Foil experiment | 1. Alpha particles were shot into a gold foil 2. Results were not exactly as expected 3. It was performed in 1909 |
Discovered by Newton | Continuous Spectrum |
Magnetic splitting of spectral lines | Zeeman effect |
Planck's quantum idea | Used to explain blackbody radiation |
Einstein's explanation of the photoelectric effect | Extended the quantum idea to all forms of energy |
Bohr principle of complementarity states | Light sometimes behaves as a wave, sometimes as a particle, but never both at the same time |
Original Bohr model | The electron can jump from one orbit to another |
The fully modified Bohr model failed in which way? | Did not work for multi electron atoms |
The fully modified Bohr model included | 1. 4 quantum numbers 2. Selection rules 3.Elliptical orbits |
Heisenberg uncertainty principle | Allows for violation of matter energy conservation |
For quantum teleportation to occur | An end-run must be done around the uncertainty principle |
The modern picture of empty space is that it | Exists as a quantum foam |
Have the smallest I.E. value | Na 1+ |
The 1st I.E. of P is abnormally large because | P has half filled p sublevel |
Einstein was against Bohr's interpretation of quantum theory for each of the following reasons | 1. "God does not play dice with the universe" 2. Was against copenhagen interpretation 3. Quantum theory is incomplete are hidden variables |
In a many electron atom, n determines what about an orbital | Energy and size |
In a many electron atom what does, I, the orbital quantum #, determine about an orbital | Energy and shape |
The max # of electron in the n=3 level is | 18 |
The max# of electron in the I=3 sublevel is | 14 |
Configuration of Cu | 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^1, 3d^10 |
In a many electron atom, n determines what about an orbital | Energy and size |
In a many electron atom, n determines what about an orbital | Energy and size |
In a many electron atom what does, I, the orbital quantum #, determine about an orbital | Energy and shape |
The max # of electron in the n=3 level is | 18 |
The max# of electron in the I=3 sublevel is | 14 |
Configuration of Cu | 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^1, 3d^10 |
Which is true concerning the n+1 rule in determining the sublevel with the lower energy | It will have lower n+I value and If n+I values are equal then it will have lower n value |
Belongs to the Lyman series | 4->1 |
Compare Sr, Vs, Ca As to metallic nature | Sr is more metallic |
Interpretation of the quantum theory that involves multiple universes | Many Worlds |
Even though atomic size gradually decreases across a period for transition elements, Hg is actually larger than Os because | 1. Expansion of 5d orbital 2.e- repulsions 3.Relativistic effects |
Densest element | Osmium |
The unusual properties of gold can be explained by | The Relativistic effect |
Not an unusual property of gold | Highly reactive |
Not one of the coinage metals | Cr |
Pair of metals have an abnormal yellow color | Cu, Au |
Correct short form configuration 77 Ir | [Xe] 6s^2 4f^14 5d^7 |
Correct short form configuration for 97 Bk | [Rn] 7s^2 5f^8 6d^1 |
Correct electron configuration of 62 Sm | 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, 5s^2, 4d^10, 5p^6, 6s^2, 4f^5, 5d^1 |