Chemistry For Any Whose Previous Experience Doesn’t Include The Details Of Chemical Structures
1. As
you read (to yourself) the first page of the article "Chemistry
for....." (
http://http-server.carleton.ca/~dwiles/Art_and_Artifacts/chmintro.htm ),
stop after each sentence and say "Yes" out loud if you understood it. If not,
ask someone nearby who just said "yes" to explain it to you. Then decide if this
information is old or new for you. Write "old" in the margin near things you
already knew, write "new" next to information you did not already know.
2. Circle the sentence "It turns out that there is a strong tendency for the atom to try to achieve a full shell - either by shedding one or two electrons, by capturing one or two electrons from some other atom, or by sharing electrons with neighbors."
3. Cross out anyplace where it says "molecular bonding" and change it to "covalent bonding".
4. Stop reading and "yessing" and writing at the first bold heading.
5. Get colored pencils, then on your Periodic 
Table, draw a circle around all the elements on the
left side and label the circle: "Two or more or these
together will form metallic bonds". Circle the paragraph in the article about
metallic bonding with the same color. Now read that paragraph. Tell a partner or two what it means in your own words. If they concur, move on.
6. Use a different color to draw a circle around all the elements on the right side and label the circle: "Two or more or these together will form covalent bonds". Circle the paragraph about covalent bonding with the same color. Now read that paragraph. Tell a partner or two what it means in your own words. If they concur, move on.
7. With a third color, write: "Ionic bonds form between elements from opposite sides." Draw arrows with the same color from this statement to opposite sides of the Periodic Table. Use the same color to circle the paragraph on ionic bonding. Now read that paragraph. Tell a partner or two what it means in your own words. If they concur, move on.
| Homework: (1) Read p60-64, answer #1-3 p66 (2)Add the number of valence electrons each of the first 20 elements has to your Periodic Table (the first element in each row/period has one, the second element has two, etc). |
| Honors also (1) read article Periodic Table: Nuclear Scientists Eye Future Landfall On A Second 'Island Of Stability' and speculate about what super-heavy, super-dense elements might someday be used for. (2) Read article Smallest Quantum Dots Ever Created and Quantum Dots May Be Toxic To Cells And Environment Under Certain Conditions and describe how the two connected quantum dots in the photos are different than two normal silicon atoms joined by covalent bonds. |