Hon Chemistry 1-5-12 Spectroscopy Lab

HON CHEMISTRY: How’d you like playing with light? So, after experimenting, what do you think? Is light a particle or is it an energy wave?

Are you clear on how to turn in the lab report? Observations from the diffraction grating yesterday will be in two parts: 1) the written observation – answers to those four questions for BOTH types of light on notebook paper, and 2) your drawings of both kinds of light on card stock or heavy white paper, and then both drawings mounted on one sheet of construction paper. Be sure to label everything.

Observations from today, using the spectroscope will be answered on the actual lab sheets/packet. Double check to make sure you answered every single observation and question. The entire packet is due Monday.

Great job on locating the absorption lines – they’re difficult to find! And I’m pretty sure I like outside labs! Now, let’s talk about the whole wave/particle thing tomorrow. πŸ™‚

Plumage on Flickr

Chemistry 1-5-12 Radioactive Decay

CHEMISTRY: So ordinarily it looks like just any old hunk of rock, but this is a picture of uranium ore under UV light. Pretty cool, huh?!? Here’s the lecture from Thursday on the properties of radioactive nuclides and the types of radioactive decay.

Hey, great job learning to write nuclear equations today! Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. I don’t think it will be nearly as bad as polyatomic ions! πŸ™‚

Have any of you decided you want to get a head start on the half-life simulation lab? Don’t let it stress you out! It’s one of easiest labs you’ve done. But it does require that you READ the instructions on the syllabus and the website. If there is something you still don’t understand, make sure you ask me, I’ll be glad to help! And speaking of half-life, let’s calculate it tomorrow. Calculators ready!