LARN 035 C9D3
Start the following in class:
1. The required journal focus question J35 for today is
a. How are the isotopes of sulfur alike?
b. How are they different?
[Hint: First determine which isotopes of sulfur exist naturally in the sulfur deposit found on earth whose isotopic abundances are reported in Table 4.3 on page 112 of your text.]
2. Doing ChemThink interactives are part of the core experiences for all chemistry students.
- The ChemThink applications that are not on the ChemThink log on site are applications written in the now deprecated Flash programming language. Flash is no longer supported by the Firefox browser, nor the Chrome browser, nor the Opera browser any longer.
- Instead use either an Edge, Internet Explorer, or Safari browser on a laptop or desktop computer to access the mrchemistry.org web site and then click on the link below to take you to the simbucket.com web site. If the computer asks you whether to allow Flash to run, grant it permission for this module only. Click on this ChemThink Isotopes link or go to the non-log-on ChemThink web site https://www.simbucket.com/welcome-to-simbucket/, and scroll down and click on the yellow colored Tutorial button and do the tutorial.
- Focus on understanding why the correct answer to each problem posed is what it is. Your goal is to have a deep enough understanding to to advance to the following page. If you do not attain that level of understanding, review some more, analyze some more, and try again until you succeed. Take notes in your Learning Log if that would be helpful.
- If you do not have a copy of the worksheet that goes with this module, click on the provided link to the ChemThink worksheet for this module or, if that doesn’t work, locate it in the Student Resources > Handouts > ChemThink Formative Assessment Note Sheets folder. Download the worksheet, and print off a copy.
- Place your hand in number and name in ink in the upper right corner of the worksheet.
- Record a response to each question asked on the worksheet.
- Click on the Problem Set button. Try to do each problem in the Problem Set correctly during your first attempt at working your way through the problem set. If you get a problem wrong, focus on understanding why each problem posed is answered in the way that it is. Take Cornell notes on anything that temporarily stumped you. Your goal is eventually to have a deep enough understanding to score a 10 out of 10. If you did not attain that level of understanding the first time through, review some more, and do the problem set again until you have mastered the content with a 10 out of 10 score. Some things will not be obvious to beginners, so ask for assistance if you have given it your best effort.
- Summarize the main ideas of the ChemThink in your Cornell Notes and then place the Cornell Notes and worksheet in the Notes section of your 3 ring binder, and bring it to class.
3. Do the Section Reviews 4.1 and 4.2. For each question or problem challenge, either answer the question to the best of your ability using one or more full sentences, or answer the problem to the best of your ability by recording any numbers and units together with the mathematical operations performed in symbolic terms, along with the solution to the problem which should be circled.
Recommended for those who have time left in their 45 minute study period, but not required of all:
1. How do we detect that there are different isotopes and measure their fractional abundance in a given sample? Click on the following link: mass spectrometry (8:19).
2. Do questions 1 through 8 on the back of the Blank Periodic Table handout. Express each response as a full sentence. You do not have to fill in the blank periodic table.
3. Enrichment: Go to http://www.pbs.org/wgbh/aso/tryit/atom/to learn about quarks, protons, neutrons, the instability of nuclei containing more protons than neutrons, and what causes ions to exist. Remembering that two up quarks and a down quark make a proton, and that one up quark and two down quarks make a neutron, build up stable and unstable atoms from hydrogen to carbon with the Atom Builder shockwave animation at http://www.pbs.org/wgbh/aso/tryit/atom/builder.html Don’t forget to add enough electrons to make each atom neutral!
NOTE: If you can’t view content with the Shockwave Player, it could be that your computer is running a 64-bit Web browser on a 64-bit Windows operating system. Shockwave Player does not run in most 64-bit browsers in Windows. If you attempt to download the Shockwave Player in a 64-bit browser on Windows operating system that does not support Shockwave Player, you see a message from Adobe and a link. To install Shockwave Player, use a 32-bit Web browser on your 64-bit Windows operating system. All major browsers are available in 32-bit versions and the Internet Explorer 32-bit browser is the default
browser on Windows 64-bit systems. Reminder: Administrator privileges are needed to install any program on a computer http://helpx.adobe.com/shockwave/kb/shockwave-player-64-bit-windows.html#main_Install_Shockwave_Player_on_a_64_bit_Windows_operating_system.
If for some reason you cannot get the Atom Builder interactive animation to work, you may learn about subatomic particles by working your way through appropriate parts of the http://particleadventure.org web site.