we turned page 126 in today, it was HW #1
47)E=hv v=E/h = 1.55 x 10^-24 J
________________ = 2.39 x 10^9 Hz
6.626 x 10^-34 J(S)
42) c. they are the same speed
46) e. 3
f. 10
49) Schrodinger used math probabilities to find electrons in a certain area
Bohr said electrons orbit the nucleus much like planets around the sun
Selenium (Se) - configuration for the last electron
1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^10,4p^4
l = 0 ->s
l = 1 -> p
l = 2 -> d
n = 4
l = 1
m = -1
s = -1/2
----------------
Fr
n = 7
l = 0
m = 0
s = +1/2
--------------
Ra
n = 7
l = 0
m = 0
s = -1/2
we can use the TI calculators 83-89 , change the batteries, bring 2 #2 pencils, don't randomely guess.
1.A
2.C
3.D
4.D
5.B
6.B
------
1.C
2.B
3.C
4.B
5.C
6.C
7.c
8.D
9.E
10.B
11.C
12.B
13.D
14A
15.C
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This is a cool website with the history of the atomic model.
ReplyDeletehttp://www.commonsensescience.org/atom_models.html
http://www.equalrightsforall.net/online_tutorial/modern_physics/quanta/004_fotoel_sol.htm
ReplyDeleteHere are some problems invloving Planck's constant
I'd just like to point out it was HW #12; not #1.
ReplyDeleteOn the other hand, here's an explaination of Bohr's model, since it seemed like some of us were having trouble.
http://csep10.phys.utk.edu/astr162/lect/light/bohr.html
And here's a good website for problems with solving for frequencies/wavelengths.
http://www.avon-chemistry.com/quantum_prac_problems.pdf
remember that for every answer you get wrong tomorrow you lose 1/4 of a point but if you leave it blank you wont lose anything. therefore common sense would say if you do not have the slightest chance don't guess
ReplyDeleteIt was HW 1.
ReplyDeleteReading through this website is helpful for understanding quantum numbers and electron configurations:
http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/quantum.html
This site is basically a review of orbital notations.
ReplyDeletehttp://www.sciencegeek.net/Chemistry/taters/Unit2ElectronNotations.htm
This website is on the photoelectric.
effect.http://www.physlink.com/Education/askexperts/ae24.cfm
Here's a good site helping with Shrodinger's electron model
ReplyDeletehttp://www.colorado.edu/physics/2000/quantumzone/schroedinger.html
This site helps explain Bohr's model to very well:
ReplyDeletecsep10.phys.utk.edu/astr162/lect/light/bohr.html
Colby, it was homework #1 beacuse it restarts every quarter.
ReplyDeleteAnyways, these are some good practice problems involving frequency, wavelength, speed of light, and other things like that:
http://www.sciencebugz.com/chemistry/chprbFreq.htm
It was HW # 12 for the year.. So we both win?
ReplyDeletehttp://physics.uoregon.edu/~soper/Light/frequency.html
ReplyDeleteGood site on wavelength and frequency