Chemistry 1-24-18 Half Life Problems

CHEMISTRY: These banana’s been through too many half lives for you?? Great job thinking through the half-life problems! Be sure and practice, practice, practice! They aren’t super difficult, but if you don’t practice, you’ll be as lost as a ball in high weeds!!

What about the Half Life thLab? Scroll down to find the post for your class and for more information.

Help session TOMORROW, Thursday, 7:20ish, if you’d like extra practice on nuclear equations and half life problems.


flickr photo by Per Pettersson

1st Period Chem Half-Life Simulation Lab

Hey guys – this is where 1st Period Chemistry posts results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

Don’t forget that your results must be posted by Saturday, Jan. 27, by 8:00 A.M. The lab report is due by 8:00 A.M. on Tuesday, Jan. 30 – save as a PDF to both your Google Drive Chemistry Shared folder AND turnitin.com.

Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

Just to clarify, everything on the lab sheets will go in your lab report on that you will post on Google Drive: Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, use Scannable to scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

Happy counting – and wait until AFTER the lab to snack!! πŸ™‚

M&M's
flickr photo by Jared Browarnik

3rd Period Chem Half-Life Simulation Lab

Hey guys – this is where 3rd Period Chemistry posts results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

Don’t forget that your results must be posted by Saturday, Jan. 27, by 8:00 A.M. The lab report is due by 8:00 A.M. on Tuesday, Jan. 30 – save as a PDF to both your Google Drive Chemistry Shared folder AND turnitin.com.

Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

Just to clarify, everything on the lab sheets will go in your lab report on that you will post on Google Drive: Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

Happy counting – and wait until AFTER the lab to snack!! πŸ™‚

M&M's
flickr photo by Jared Browarnik

4th Period Chem Half-Life Simulation Lab

Hey guys – this is where 4th Period Chemistry posts results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

Don’t forget that your results must be posted by Saturday, Jan. 27, by 8:00 A.M. The lab report is due by 8:00 A.M. on Tuesday, Jan. 30 – save as a PDF to both your Google Drive Chemistry Shared folder AND turnitin.com.

Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

Just to clarify, everything on the lab sheets will go in your lab report on that you will post on Google Drive: Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

Happy counting – and wait until AFTER the lab to snack!! πŸ™‚

M&M's
flickr photo by Jared Browarnik

Chemistry 1-23-18 Radioactive Decay & Half Life

CHEMISTRY: Today has been all about arrows and where to put them! So how are you doing with the nuclear equations? Feeling better about them now that you know what side of the arrow to put the particle on? Also, make sure you memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons – those are just as important as the arrow!

Great job today on tackle half life problems! Practice them tonight and we’ll practice them again in class tomorrow. Bring your calculator! πŸ™‚

Need extra help? Help session Thursday morning, 7:20ish A.M.


Photo by Gaelle Marcel

Chemistry 1-22-18 Properties of Radioactive Isotopes

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 our beginning discussion of the unique properties of radioactive nuclides, and a head start at looking at nuclear equations.

Have you looked over the half-life simulation lab? 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 don’t understand, I’ll be glad to help!

Chemistry 1-19-18 Intro to Radioactivity

CHEMISTRY: Great start to a new chapter! I think you’ll be surprised how much nuclear chemistry is already a part of your everyday life. Also now you know where E=mc2 came from!!

By the way, you ought to read about the life of Marie Cure when you get a chance. Fascinating woman of science with an incredible story!

Chemistry 1-18-18 Isotopes & Average Atomic Mass

CHEMISTRY: Isn’t God awesome to give us minds to understand the world around us – even the parts we can’t see!

Be sure and get the 2nd Snow Updated syllabus. Things got changed around again!! Be sure and notice the special instructions for Thursday night’s homework!

Here’s the lecture from Thursday on isotopes and average atomic mass. How are you doing on writing nuclear symbols? Also make sure you can use them to determine the number of protons, neutrons, electrons, etc., AND be sure you can use the formula to find average atomic mass!

Can you believe atoms are that small – and the nucleus even waaaaaay smaller! The thumbnail is a picture of atoms from the IBM Almaden Research Center. These are iron atoms on top of copper. Being able to move atoms around like this was a giant leap in the field of nanotechnology! (Sorry about that, bad pun! πŸ™‚ )

Chemistry 12-7-15 Isotopes & Average Atomic Mass from Tammy Skinner on Vimeo.

Image source IBM Almaden Research Center

Happy Snow Day!!

Hallelujah! God is good! I hope you’ve enjoyed your snow day!!

Here’s the revised scheduled for all classes – pretty much we’ll just take up on the syllabus where we left off:

HON CHEMISTRY: Bring your Spectroscopy lab – we’ll finish it in class on Tuesday. Also bring your colored pencils! We’ll begin Friday’s lesson next Wednesday.

CHEMISTRY: We’ll just take up on the syllabus where we left off. No new homework, we’ll just pretend that this coming Tuesday is last Thursday! πŸ˜‰

HON PHYSICS: Conservation of Momentum lab moved to Tuesday!

Enjoy your day off!!

snow day

Chemistry 1-11-18 Structure of the Atom, Pt. 2

CHEMISTRY: I love our chapels this week and hearing from God’s Word – but it does make for short classes! Here’s the last of our discussion on how scientists discovered protons and neutrons. You know, in class yesterday and today I just gave you mostly one name to go with each, but don’t forget they work with other scientists to get the job done!!

Make sure you know the name of the scientists, the name of their experiments, be able to draw a diagram of their experiment, and describe how they interpreted the experimental results that led to their discoveries.

Don’t forget about these video clips we watched in class, they’ll help you review the different experiment that the guys like Thompson and Rutherford did. Here’s another one on The Discovery of the Nucleus. And again – do you think there could be anything smaller than protons, neutrons, and electrons? Hmmmmm……


flickr photo by Here’s Kate