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

X

Z

A

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 tableConsider all isotopes of atom and abundance of each

p. 104 #16

Given Find

Mass He is 4.003 amuHe only has 2 isotopes He-3 He-4

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

Given Find

three isotopes of Mg23.985 amu 78.99% abundance24.986 amu 10.00% abundance25.982 amu 11.01% abundance

calculate ave atomic mass

23.985 amu x 78.99% abundance = 18.95 amu24.986 amu x 10.00% abundance = 2.499 amu25.982 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

Atomic # = protons = electrons

protons + neutrons = mass # (atomic mass, rounded)

Li - atomic # = 3 atomic mass # = 6.941 mass # = 7

B - atomic # = 5atomic mass # = 10.811mass # = 11

C - atomic # = 6atomic mass # = 12.011mass # = 12

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 (Ch 2,3, & 4)• 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

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 (Ch 2,3, & 4)• 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 tomorrowPer 2 MondayPer 3 Tu

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

Interactive Chalkboard file - Detecting Radiation.mpg

Video on how well different materials block the 3 basic types of radiation (emission):

alpha (α particle) beta (β particle) gamma ( radiation)

Bill Nye - Structure of the Atom (6.5 min)

Shielding and penetration of the 3 types of radiation, simple animation on video (30 sec)

http://www.youtube.com/watch?playnext=1&v=9j62CVRwZPc&list=TL1mNB-0YDd-c

Shielding and penetration of the 3 types of radiation, actual Geiger Counter (3.5 min)

http://teachertube.com/viewVideo.php?video_id=105573&sa=U&ei=Pf2nTbiGMJKisAOZ59D5DA&ved=0CDMQtwIwBg&usg=AFQjCNE-DLVQgl9_vRlYjh--5J3vaAkdVA

http://www.youtube.com/watch?v=ec8iomUS34U

10/5/2012 Standards: MISCObjectives: • 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 SHEETHOMEWORK: 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 todayPer 2 MondayPer 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.

frequenciesvalence electronsx-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 SPREADquiz - in order, smallest # on top SPREADPeriodic Chart - in order, smallest # on top

SPREADhelp sheet