10/1/2012 Standards: 1 (Str of the Atom)
Objectives:
• Students will be able to do Str of the Atom wksht (handout)
DUE END OF PERIOD
• Students will be able to, if given any 2, figure the 3rd - protons,
neutrons, electrons
• Students will be able to do Dalton's Playhouse ex cr if they desire.
DO NOW:
1. Atom has 35 electrons - # protons = __, # neutrons = __, what
element is it?
2. Atom has 8 protons - # electrons = ____, # neutrons = __, what
element is it?
HOMEWORK:
1. Ch 4.3 PP's p. 99-104 11-17 (5 pts) Std 1
2. ChemThink.com Isotopes (3 Tutorial) (7 questions) (10 pts) Std 1
Due Tu by midnight.
==========================================================
JOURNAL: 9/28
BASKET:
1. Ch 4 Assess (Mastering Concepts) p.112 29-39 (5 pts) Std 1
A
X
Z
A = mass # = protons + neutrons
Z = atomic # = protons
X = atomic symbol
Average Mass - mass shown on periodic table
average mass of all the atoms of an element on periodic table
Consider all isotopes of atom and abundance of each
p. 104 #16
Given
Mass He is 4.003 amu
He only has 2 isotopes
He-3 He-4
Find
Which isotope of He is
more abundant?
Calculating the average atomic mass of an element
The relative abundance of each isotope of an element is required to figure the
average atomic mass.
p. 104
#17
Find
Given
three isotopes of Mg
23.985 amu 78.99% abundance
24.986 amu 10.00% abundance
25.982 amu 11.01% abundance
calculate ave atomic mass
23.985 amu x 78.99% abundance = 18.95 amu
24.986 amu x 10.00% abundance = 2.499 amu
25.982 amu x 11.01% abundance = 2.861 amu
---------total = 24.31
amu
10/2/2012 Standards: 1 (Str of the Atom)
Objectives:
• Students will be able to do Str of the Atom wksht 2 (handout)
• Students will be able to do Dalton's Playhouse ex cr if they desire.
DO NOW:
Get started on Str of the Atom 2. Follow directions below.
HOMEWORK:
1. Str of the Atom 2 (HANDOUT) - Do only problems circled. If you
write answers on this sheet, you don't have to copy q's.
For 35-39 do a,c,e only. (5 pts) Std 1
2. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 1-20.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
==========================================================
JOURNAL: 10/1
BASKET:
1. Ch 4.3 PP's p. 99-101 11-17 (5 pts) Std 1
Check today's HW page for answers to
yesterday's Str of the Atom 1
Li - atomic # = 3
atomic mass # = 6.941
mass # = 7
B - atomic # = 5
atomic mass # = 10.811
mass # = 11
C - atomic # = 6
atomic mass # = 12.011
mass # = 12
Atomic # = protons = electrons
protons + neutrons = mass # (atomic mass, rounded)
Use these notes along with p. 106 - 107 of textbook to answer questions related to
radioactive decay
Dalton's Playhouse - 10 points Extra Credit
(see link on today's HW page.)
Due 10/10
http://web.visionlearning.com/dalton_playhouse/ad_loader.html
10/3/2012 Standards: 1 (Str of the Atom)
Objectives:
• Students will be able to answer questions 21-41 from Practice Quiz 1.3
• Students will be able to work Radioactive Decay problems.
• Students will be able to do Dalton's Playhouse ex cr if they desire.
DO NOW:
1. Read & try to understand today's HANDOUT
HOMEWORK:
1. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 21-41.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
2. Help Sheet for Quiz 1.3 (Ch 2,3, & 4) (5 pts) Std: MISC
==========================================================
JOURNAL: 10/2
BASKET:
1. Str of the Atom 2 (HANDOUT) - Do only problems circled. If you
write answers on this sheet, you don't have to copy q's.
For 35-39 do a,c,e only. (5 pts) Std 1
2. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 1-20.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
(Ch 2,3, & 4)
neutron =
10/4/2012 Standards: 1 (Str of the Atom) 11 (Nuclear Chem)
Objectives:
• Students will be able to answer questions 42-58 from Practice Quiz 1.3
• Students will be able to do Dalton's Playhouse ex cr if they desire.
DO NOW:
1. If mass = 3.75g and density = 6.55g/mL, what is the volume?
HOMEWORK:
1. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 42-58.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
2. Brush up your Help Sheet for Quiz 1.3 (Ch 2,3, & 4)
(turn in tomorrow after Quiz 1.3 (5 pts) Std MISC
======================================================
JOURNAL: 10/3
BASKET:
1. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 21-41.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
2. Practice Problems Radioactive Decay
3. Help Sheet for Quiz 1.3 (Ch 2,3, & 4) (5 pts) Std: MISC
Notebook Grading Schedule:
Per 1 tomorrow
Per 2 Monday
Per 3 Tu
(Ch 2,3, & 4)
1. Str of the Atom 2 (HANDOUT) - Do only problems circled. If you
write answers on this sheet, you don't have to copy q's.
For 35-39 do a,c,e only. (5 pts) Std 1
2. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 1-20.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std 1
Bill Nye - Structure of the Atom (6.5 min)
http://te
achertu
be.com
/viewVi
deo.ph
Interactive Chalkboard file - Detecting Radiation.mpg
p?vide
o_id=1
Video on how well different materials block the 3 basic
05573
types of radiation (emission):
&sa=U
&ei=Pf
alpha (α particle)
beta (β particle)
gamma (
radiation)
2nTbiG
MJKisA
OZ59D
5DA&v
ed=0C
DMQtw
Shielding and penetration of the 3 types of radiation, simple IwBg&
animation on video (30 sec)
usg=A
http://www.
FQjCN
youtube.co
Em/watch?v
DLVQg
=ec8iomU
l9_vRl
S34U
Yjh-5J3vaA
kdVA
Shielding and penetration of the 3 types of radiation, actual Geiger
Counter (3.5 min)
http://www.youtube
.com/watch?playne
xt=1&v=9j62CVRw
ZPc&list=TL1mNB0YDd-c
10/5/2012 Standards: MISC
Objectives:
• Check for understanding with Quiz 1.3 (Ch 2,3,4)
DO NOW:
Clear desk and floors. On your desk you may have: food, gum,
drink, calculator, scantron, pencil eraser, HELP SHEET
HOMEWORK:
1. SN Ch 5.1 pages 57-61 (5 pts) Std 1
======================================================
BASKET:
1. Practice Quiz 1.3 (Ch 2, 3, & 4) (HANDOUT) Questions 42-58.
If you write answers on this sheet, you don't have to copy
questions.
(5 pts) Std MISC
Notebook Grading Schedule:
Per 1 today
Per 2 Monday
Per 3 Tu
If you see questions on the following topics on your quiz, these
are from Ch 5 and were accidently put in this quiz. Raise your
hand for the answer.
frequencies
valence electrons
x-rays
K + 273 = C
Isotopes are also considered atoms
These Density problems are to be done on the back of the scantron in this area.
You will need 2 fractions and an answer that is circled. If you are given g and mL,
you only need to show your starting fraction.
1. Make piles for
scantron - in order, smallest # on top SPREAD
quiz - in order, smallest # on top SPREAD
Periodic Chart - in order, smallest # on top
SPREAD
help sheet