Part I: Categories of Elements on the Periodic Table

Objective: To discover the important sections of elements on the periodic table.

Lesson: can use various websites. The following are recommended.

Go to the Chem4Kids website and follow the links to answer the questions on your paper.

Periodic Table –

1) What is a group?

2) What is a period?

Families –

3) How are elements grouped into families?

Metals –

4) Approximately what % of elements do metals make up?

Alkali metals –

5) Who's in? Who's out?

What are some properties of the alkali metals?

Lanthanide Series (part of the inner transition metals) –

6) Under "Meet the Family", what is unique about the actinide series?

Halogens –

7) How many electrons do halogens have in their valence energy levels?

8) What do halogens like to react with?

Inert gases (noble gases) –

9) Why are they happy?

Part II: Some Trends on the Periodic Table

Objective: To discover the periodic trends of certain physical properties of elements related totheir position on the Periodic Table of Elements.

Activity: Use data from Webelements to answer the following questions.

Atomic Radius

1) Define atomic radius in your own words:

From the line graph of atomic radius and ball size representation of atomic radius

2) What do the different colors show?

3) What appears to be the trend in atomic radius as you move from left to right in a row?

4) What appears to be the trend in atomic radius as you move from top to bottom in a

column?

5) Is the pattern of atomic radius absolute or general (always true or generally true)?

6) Why do the fourth and fifth periods have more dots and different patterns?

First Ionization Energy

7) Define first ionization energy in your own words:

From the line graph for 1st ionization energy and shaded periodic table of 1st ionization energies:

8) What appears to be the trend in ionization energy as you move from left to right in a

row?

9) What appears to be the trend in ionization energy as you move from top to bottom in acolumn?

10) Is the pattern in ionization energy absolute or general (always true or generally true)?

Electronegativity

11) Define electronegativity in your own words:

View the line graph for electronegativity and the shaded periodic table of electronegativities.

12) What is the most electronegative element?

13) Where is it found on the periodic table?

14) Where are the least electronegative elements found?

15) What appears to be the trend in electronegativity as you move from left to right in a

row?

16) What appears to be the trend in electronegativity as you move from top to bottom in

a column?

17) Is the pattern in electronegativity absolute or general (always true or generally true)?

Periodicity

18) How do these properties show periodicity (periodic trends) of the chemical elements

That is, as the atomic number increases, when to the trends repeat?

Evaluating Resources

19) Which type of representation, line graph or shaded periodic table, did you find most

useful for seeing the periodicity in these properties? Explain.

20) Which type of representation, line graph or shaded periodic table, did you find most

useful for seeing the general patterns without getting confused by exceptions in that

pattern? Explain.

Choose one of the following to complete a project on…this project is Due Friday, September 21, 2012.

  1. Project: My project is on: (circle one)
  2. Atomic radius
  3. Ionization energy
  4. Electron affinity
  5. The part of my analogy that shows the periodic trend across a period is
  6. The part of my analogy that shows the periodic trend down a group is
  7. The part of my analogy that shows that the property is affected by electron attraction for the nucleus is
  8. My project is going to be (circle one)
  9. Poster/Drawing/Comic/Graphic novel/Advertisement
  10. Story/Poem/News article
  11. Song
  12. Movie/Interview/Animation
  13. Dance / Presentation
  14. Other. Please describe ______

Rubric for project

Expectations / Amazing
4 pts / Above average
3pts / Average
2 pts / Additional Effort Needed
1-0 pts
KNOW:
-The trend and definition of atomic radius OR ionization energy OR electron affinity
-The terms shielding and effective nuclear charge / Uses good analogy to demonstrate knowledge of multiple ideas. / Uses analogy to demonstrate knowledge, but may still demonstrate misconception/or missing 1 term. / Defines terms as done in class. / Shows major misconception. Missing terms.
UNDERSTAND
-an elements position on the periodic table allows prediction of magnitude of property
-property is affected by attraction between electron and nucleus (protons) and repulsion of electrons / Shows complex understanding of the concepts
(e.g. consistent analogy works for all) / Understand s the concepts / Limited under-standing of the concepts / Little to no under-standing
Quality Work
(as defined by student) / Exceeds quality work criteria
Unique, fresh, imaginative work. / Exceeds quality work criteria / Meets quality work criteria
*turned in on time
*project does not require clarification / easy to understand / Does not meet quality work criteria.
Type of Project:______
Ways I Will Do Quality Work for the Project:
  1. ______
  2. ______
  3. ______
Teacher initials ______
What I did that was Quality Work: