CHEMISTRY: Can you believe atoms are that small – and the nucleus even waaaaaay smaller! The thumbnail is another 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! 🙂 )
Here’s the lecture from Thursday on atomic number and isotopes. It’s the last lecture for this chapter – and for this year!!
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!Happy calculating on the problems for tonight.
Oh, any questions about the Carbon Isotope Mini-Project?
CHEMISTRY 12-3-12 Isotopes & Average Atomic Mass from Tammy Skinner on Vimeo.
Image source IBM Almaden Research Center
Happy we are out, but sad we dont get to review
Those pictures of the individual atoms are very interesting!
Glad to have finished a chapter but hoping the power doesn’t go out so we can get the test over with
its was cool to know how many atoms make up one little dot.
glad that we got out today but sad that we could not review the chapter before the test
Thank you so much for this review!!
The picture of the first atoms looked really cool.
I am happy that we had no school today but sad we couldn’t have a review day.
What did they arrange the atoms into words with?
These past few lessons have blown my mind a bit. So interesting
it was cool to learn that the Germans were the first ones to split an atom.
This was a fun week can’t wait to see what next week will be like! I hope everyone enjoys the out day! #chapter3testantecipation
I am thankful that the popcorn kernel lab was pretty easy!
Are we still going to have a test on Monday? And if Monday school gets cancelled.. will we have the test on Tuesday?
Pre-Test Monday & TEST TUESAY. Try not to be too sad, but study bc u may have lots of tests Tuesday!! 🙂
What kind of objects do we bring for the sock and can activity?
Mrs. Skinner I can not find the exam review on here or on edline. Have you just not uploaded it yet?
Erin – It’s under the Chemistry Handouts tab. 🙂
Thanks Mrs. Skinner I found it 🙂
This project is going to be interesting. that’s all I have to say! Can we use small Styrofoam balls if we cant find clay to use and its a last resort?
Kelly – No, there is a major deduction for that. Try Wal-mart or Michaels, etc.
This really helped me study for the test! Thank you for posting it!
Can you believe it has almost been a semester, Ms. Skinner? It seems like we just started class yesterday! I really do enjoy Chemistry. Thank you for posting a study guide for Chapter 3. It helps me remember what to study. 🙂
The practice problems in class for writing isotope symbols helped me alot
The study guide on edline is really helping me keep everything i need to know together.
Just wondering, but where is the Exam Review located at?
Rachel – Check under Chemistry Handouts 🙂
That picture at the beginning represents a vary great achievement of man, Identifying and observing the basic unit of the world,the atom.
The spectroscopy lab was so much fun! It was amazing to explore the incandescent light bulb and looking at the sun through the spectrometer. I can’t believe the colors I saw were the colors of elements on the sun!
I am very thankful for your grace and prayers this week.I am ready to start preparing for mid terms.
Thank you for posting this, it helped me study for the test.
The mini project was challenging but pretty neat.
The mini project was fun and I think I did really well!
The lab was really fun today. I felt like a detective!
I cant wait for school to be over for the semester as long as I do well on exams
The exam review packet and the extra credit we can get from completing it will be very helpfull. Thank you so much!
The exam review packet and the extra credit we can get from completiting it will be very helpfull. Thank you so much!
that lab yesterday was really fun
the sock lab was neat and fun, it made you use your brain, and that exam review packet is going to help me a lot with grade
The exam review packet will help me a lot!
Cant believe we are almost to exams
The exam review you posted for us is a major help. Thank You.
The exam review you posted for is a lot of help. Thank You.
Will we get our last tests back before the exam?
Before this lesson i didnt know much about isotopes or what they consisted of.
I’m gonna study hard for the exam
Thank you for reviewing us! It helped a lot!
I enjoyed working on the mini project I think I did pretty good!
The mini project was not as hard as I thought it would be.
Thank you so much for the exam review and 10 extra points!!
I’m glad for this video because I can use it to study.