Thursday, June 11, 2015

June Homework and some summer instructions

Here is how we play the homework game in AP Chemistry.  I am more than willing to take care of your grade if you are willing to do the work I ask.  Homework needs to be completed and turned in ON TIME.  If you do not turn it in on time, it will go in as a ZERO, if turned in late it will be lowered 10% each day!!  This would be bad since most assignments are worth around 100 points easy.  REMEMBER TO NOT WRITE IN THE BOOK!!!   I suggest:

1.  Read the chapter over the span of a few days and make a general outline for the chapter.

2.  Try to answer the summary questions based on that outline, looking up answers in the book when necessary.  Even though the outline and the chapter summary questions may overlap, they both need to be done and both will be scored.

3.  Answer the exercises assigned from the book as you are reading the chapter.  These should be done in order on a separate piece of paper and be neat so that I can follow them and score them easily.  You don’t want me grading angry, yo.
CIRCLE any ones you have questions on - when we go over it later you want to be able to remember which ones were weird.

4.  At the end of the chapter, answer the multiple choice questions, GRADE THEM, and circle ones that you have questions on so I may address any that you still do not understand when I see you in class.  Do the same with the free response.  These will be for points.  Show work and actually try them please – don’t just copy them and write down the answers – this is not helping you at all.  I am not the homework police – you need to take responsibility for your education when working the assignments.  I can tell if you are just copying stuff down - I am not a moron.

5.  Use a calculator and the formula sheet that is given in the book.  You need to become familiar with the equations they will give you because it helps us tell what questions that could choose.  You can use a calculator on the free response, but not on the multiple choice section - they removed that option last year.  Thanks a lot! 

JUNE HOMEWORK SET #1                         Name:
CHAPTER 1 - structure of the atom

Chapter 1 Book Assignments: your score:     /95 pts

ASSIGNMENT 1:   _____ /27 points

Due Date
Your pts/total
Read pages 79-89

Create “smart guys list” – from summary sheet

Outline Ch 1:  structure of the atom for part I

Read Part II pages 89-97

ASSIGNMENT 2:  _____ /68 points

Outline Ch 1:  structure of the atom for part II

Answer Block’s summary sheet

AP Practice Quiz pgs 100-103 – GRADE IT!!!

Free response page 104


Chapter 1 Homework Assignments: your score:      /110 pts

Your pts/total
Quantum Numbers worksheet

Para/Diamagnetic worksheet

Ch 1 crib notes review

Diagnostic Test #1:  take it and grade it!!  (Completion)

Chapter 1 TOTAL PTS: your score:            /205 pts
Block’s Summary Sheet:  Chapter 1:  Structure of the atom – 22 pts

This is different than your outline.  Both must be completed for points!!

1.     List and describe the 4 laws about the atom.  (4 pts)

2.  Make a separate list of the 17 smart guys, their discoveries in order with years,
and their significance on your smart guys sheet. (smart guys list)

3.  Compare the three subatomic particles’ masses and charges. (3 pts)

4.  List the 3 equations regarding ENERGY and electromagnetic radiation, noting
what each variable stands for, the units, and rearrange the equations. (3 pts)

5.  List the constants for these 2 equations. (2 pts)

6.  Note and write the equation for the energy of an orbit that is given on the AP
          Test.   What does “n” stand for in that equation?  (2)

7.  Discuss the difference between the Bohr model versus the wave model. (1)

8.  List the four quantum numbers, how to assign them, and give examples of
each. (4 pts)

9.  Write the Aufbau Principle. (1 pt)

10. List the five common elements that are exceptions to the Aufbau
Principle and write their configurations. (2 pts)

CH 1.  Para Vs. Diamagnetic/Quantum Numbers      Name:
20 points

Short-hand notation:  use [noble gas before it], then:
s-block:  ns1 or ns2
p-block:  ns2np 1-6
d-block:  ns2(n-1)d1-10

1.  Write the symbol and electron configuration notation for:




2.  Write the symbol and the shorthand notation for:




n = levels or periods = 1 thru 7
l = sublevels or blocks = s = 0, p = 1, d = 2, f = 3
m = rooms in the sublevel  s = 0, p = -1,0,+1, d = -2,-1,0,+1,+2, f = -3,-2,-1,0,+1,+2,+3
s = spin, either up +1/2 or down -1/2

3.  Draw the symbol and the last orbital box for these elements.  Then write the four quantum numbers for the last electron in that element:




molybdenum – it is a jumper!!!!

In a DIAMAGNETIC ELEMENT:  all of the electrons are spin-paired so their sub-shells are completely filled, causing them to be unaffected by magnetic fields

In a PARAMAGNETIC ELEMENT:  they are strongly affected by magnetic fields because their sub-shells are NOT completely filled with electrons.

4.  Which of the elements is diamagnetic?

5.  Which of the elements is paramagnetic?

Quantum Number Activity                  Name:
35 points

Here are the quantum numbers for He thru Ca.  Draw the orbital boxes for each to show where the last electron of that element is. 

Designate each of the following sets of quantum numbers as possible or impossible according to the above.  If the set of quantum numbers is NOT possible, circle the one that makes it so.  If the set of quantum numbers IS possible, draw the orbital box for the last electron of that element.  Do your work here:

Chapter 1 Crib Notes – THE ATOM                           Name:
10 points

Dalton:  Atomic Theory and the Law of Multiple Proportions
Bohr: “solar system of orbits” atomic model
N = principal quantum number, orbits, periods, levels (1 thru 7)
L = AKA “azimuthal” quantum number, blocks, shape of the orbitals, sublevels (s=0, p=1, d=2, f=3)

Ml = magnetic quantum number, orientation of the orbitals, the boxes have assigned numbers: 
Ms=spin quantum number of the electron in that orbital (+1/2 or -1/2)
Diamagnetic = all subshells are filled/paired with electrons, elements are NOT affected by a magnet  (all electrons are paired)
Paramagnetic = all subshells are NOT completely filled/paired with electrons, elements will be affected by a magnet (some electrons are unpaired)
Rutherford:  discovered the nucleus using his gold foil experiment which led to his discovery of the proton, and he also separated radiation into alpha, beta, gamma rays using a magnet.
Thomson discovered the electron using his cathode ray tube experiment and Millikan found the charge and mass of that electron suing his oil drop experiment.
Chadwick discovered the neutron when bombarding a beryllium atom with alpha particles – what fun!
deBroglie – wave/particle nature of light
Rydberg equation:  related energy with the level the electron is on:  En = -2.178 X 10 -18 J
                                                                                                                                 n 2
The jumpers are:  Ag, Au, Cr, Cu, Mo

Short-hand notation:  use [noble gas before it], then:
s-block:  ns1 or ns2
p-block:  ns2np 1-6
d-block:  ns2(n-1)d1-10

Anytime you see the word “ENERGY” you need to bring out these equations:

c = lѵ    c = speed of light = 3 X 108 m/s                   l= wavelength                  ѵ = frequency
E = hѵ  so:  E = hc/ ѵ

h = Planck’s constant = 6.626 X 10 -34 Js
1 m = 1 X 109 nm – need to convert anything meters to nm to find the color of the visible light
Blue = low wavelength, high frequency, high energy, 350 – 450 nm
Red = big wavelength, low frequency, low energy, 650 - 750 nm

Free response question:  write on a separate sheet of paper and attach to this sheet: 10 pts

1.  Write the complete and shorthand electron configuration notation for copper and give the set of 4 quantum numbers for its last electron. (HINT:  pour it all out there)

2.  Be sure to write it as a jumper cuz it is.

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