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Atomic Structure – Part A

Unit Objectives: By the end of this unit you should be able to

Describe the structure of atoms, including the particles that make them up,

Try to hand things in every day. Mrs. H WILL NOT grade more than 15 points on any day of this unit.

Recognize that key scientists and experiments have contributed to the changes

in the Atomic Theory,

Tell the difference between atoms, ions, and isotopes,
Describe the differences and similarities between different types of atoms,
Explain how models of the structure of the atom have changed over time,
Identify features and patterns on the periodic table, and
Correctly use the periodic table to find general information.

Resources: Addison-Wesley Chapter 4 & Chapter 5

www.periodictabletable.com

Key Terms:

Atom

ic theory

Atom

Proton

Neutro

Electron

Nucleus

Ion

Cation

Anion

Isotope

Atomic mass

Mass number

Atomic number

Dmitri Mendeleev

Periodic table

Period

Group

John Dalton

J.J. Thomson

Niels Bohr

Ernest Rutherford

Line spectrum

Cathode ray tube

C Layer – Part 1:

All assignments in the following list are REQUIRED. They are due no later than 7:40 a.m. on Thursday (10/6/05).

	Assignment Description	Point Value	Points Earned	Initial

R	Demonstrate to Mrs. H that you know how to properly light and adjust a Bunsen burner. This task must be completed prior to doing the Flame Test Lab.	5
R	Monday: Listen to the lecture on History of the Atom. Take notes.	5
R	Tuesday: Choose ONE of the following: Listen to the lecture on Atoms, Ions & Isotopes. Take notes. Read Sec. 4.1, 4.2, 4.3, 4.6 and 5.2. Take at least ¾ page of notes. Discuss with Mrs. H.	5
R	Atomic Structure Tic-Tac-Toe. Complete 3 assignments that fill a row, column or diagonal.	15
R	Tuesday/Wednesday: With a partner complete the Flame Test Lab. (You will be given the procedure.) Answer all the summary questions at the end of the activity.	10
	TOTAL	40

C Layer – Part 2:

All the following assignments are REQUIRED. They are due no later than 7:40 a.m. on Wednesday (10/12/05).

	Assignment Description	Point Value	Points Earned	Initial
R	Thursday: Listen to lecture on Line Spectra & the Bohn Atom. Take notes.	10
R	Friday: Choose ONE of the following: Listen to the lecture on the Periodic Table. Take notes. Read Sec. 5.1. Take ¼ page of notes. Discuss with Mrs. H.	5
R	Label & Color a blank Periodic Table WS according to the key. Keep this table in your notebook, as we will be referring to it in future units.	5
R	Choose ONE of the following: Watch the Video on the Periodic Table and complete the accompanying WS. Complete the Periodic Table Worksheet.	5
R	Choose ONE of the following: Math Review: Dimensional Analysis WS Define all Key Terms. You’ll be quizzed randomly on 10.	10
	TOTAL	35

B Layer – REQUIRED Choose ONE option.

Choose two people with whom to work. As a group, choose and prepare for one of the choices below. For this unit, you will only be planning your project. You will assign roles and tasks. You will present your actual project to the class in the next unit (3B).

The Project Plan Checklist is due no later than the end of class on Thursday (10/13/05)

Assignment Description	Point Value	Points Earned	Initial
Design an exhibit for Explora!, the local science museum, to teach the public about atoms. See detailed instructions on the project handout. Complete a Project Plan Checklist.	10
Create a short oral presentation, video, or skit to teach the public about atoms. See detailed instructions on the project handout. Complete a Project Plan Checklist.	10

A Layer: Choose ONE topic to research.

Choose your topic from the list below. Research the topic and find three appropriate articles. Complete an A Layer Assignment Sheet (both pages). You will be using this information to express your opinion about the topic in the next unit (3B).

Topic	Point Value	Points Earned	Initial
Our understanding of the structure of the atom has changed dramatically over the last 200 years. Are we “finished” discovering? (Does our current model accurately describe the structure of atoms? Will we have a different model 200 years from today? Why or why not?	15
Since Dmitri Mendeleev published the first periodic table of the elements, the table has grown as a new elements have been discovered. Is the current periodic table complete? Does it have all possible elements on it? How do you know?	15
What, if anything, does the general public need to know about atoms? Are scientists and students the only ones who should understand how to use the periodic table? Why?	15
*The A Layer Assignment Sheet is due no later than 7:40 a.m. on Tuesday (10/18/05)*

* SEMESTER PROJECT – WS #2: Due Tuesday 10/18/05 20 pts

Use your time off to complete Worksheet #2 for your semester project. Pick up a copy of it, or download it from the Chemistry – Materials Moodle Web. List 4 sources of information in your bibliography (2 from the last worksheet, 2 from this one). Type your answers. Type your bibliography in MLA style. (For guidelines, pick up a copy of the MLA style handout.)

Grading Scale:

A	B	C	D	F
88 – 100	75 – 87	62 – 74	49 – 61	< 49