CHEM 4005- Final Exam Guide - Comprehensive Notes for the exam ( 88 pages long!)

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4 Dec 2017
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NSU
CHEM 4005
FINAL EXAM
STUDY GUIDE
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SET 1
15 billion years
The age of the universe is probably
the origin of the universe
Big Bang
the debris of supernova explosions that occurred before the solar system came into being
The elements heavier than the hydrogen and helium of which the planets are composed probably
came from
together with the sun
It is most likely that the planets, satellites, and other members of the solar system were formed
the conversion of hydrogen to helium
The sun's energy comes from
(atomic numberproton mass) + (mass numberneutron mass)+(electron number*electron mass) =
nucleus mass
Atomic Mass- nucleus mass = mass defect
|mass defect|*931 = E
E/atomic number = binding energy
Answer : 6.46 MeV
Calculate the binding energy per nucleon (in units of MeV) for Be for which the atomic mass is
9.01219 amu. Particle masses in amu are : proton =1.007277, neutrons = 1.008665, electron =
0.0005486. Conversion factor is 931 MeV/amu
No
Is the mass number is the sum of protons and electrons in an atom correct
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242Cm
Complete reaction:
239Pa + alpha particle
-->neutron + ___
A heavy nucleus is fragmented into lighter nucleus
Describe the fission process
Both have stable nuclei
What is true about Tin-118 and Calcium-40
applies to sub-microscopic particles such as electrons, protons, and neutrons
What is the quantum mechanical model
probability to finding an electron at the location of x within the boundary
psi^2 dx
is the value for Energy En for an electron in the psi*n level
En = -(meZ^2e^4)/(8h^2E^2n^2)
applies EMR with disregarding any particle nature (quanta)
Wave theory
applies to bounded mechanical systems such as vibrating string and water waves
Wave mechanical model
x= h/mv with Planck's constant h being 6.626*10^-34, m being mass, v being velocity, and x
being wavelength
Answer: 6.6*10^-36
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