In this Chemthink tutorial, you will explore ion formation and take a short quiz. Topics include:
- counting protons, neutrons, and electrons
- Lewis Dot Structure for ionsThe following fill-in-the-blank notes were provided by Rebecca Carlock at Centennial High School.
Thank you Rebecca!
| Fill In The Blank Notes | PDF Version MS Word Version |
Thank you so much to Mr. Charles Sprandal for making this wonderful tutorial!
5 years ago ·
Fantastic
4 years ago ·
Just used it with my students and found it very worthwhile! Thank you!!
3 years ago ·
Hi Bruce,
Congratulations on finishing another. I wanted to point out that I was marked wrong on 3 of your questions. Here is one of your problems that should be fixed: Check each particle that has a + Charge. Possible answer were: proton, neutron, electron or none of these. I answered proton. The system marked that wrong!!!! Last time I checked protons have + charges. I didn’t write down the other 2, but when I was marked wrong, I am certain the answers need to be fixed.
3 years ago ·
Les,
Thanks for the catch. I fixed the first one, and did a quick pass over all of the rest of the questions and made some changes to acceptable ways to write ionic charge number. They should be okay, but please let me know if you find a specific one that is incorrect.
-Chris
3 years ago ·
Sorry, I forgot to tell you that this was on the HTML5 version.
3 years ago ·
Hi Chris,
Thanks for getting this on HTML5, it is a big help in flipping the classroom on some concepts! I appreciate your work and keep hoping you stay funded.
I did the question set and the problems that I get wrong are the ions. I have one that has 16 protons, 18 electrons, but S-2 is marked incorrect. Is this because it needs to be S2-? I have tried other problems with a similar lack of success. Thanks for looking into it.
-Wes
3 years ago ·
I’d also like to point out that the questions where you count up blue or red circles are tough when we forget which color protons are!
3 years ago ·
Good point. Reds are protons. Sorry about that!
3 years ago ·
Great question! ChemThink uses the convention where the charge of a sulfur ion is S2-, rather than S-2.
3 years ago ·
Chris, Thanks for all your hard work on this! Chemthink is such a good resource. Can you maybe work on getting Ionic Formulas up next in HTML5? I’d love to be able to use it in that format this year.
3 years ago ·
Can do! How soon do you need it?
3 years ago ·
I am using it in the next 2 weeks so that may not be enough time. It definitely is a good one to do next though! I think actually the ion formation sim is using blue as the protons because there is one that has 8 blue 9 red and 10 electrons. The answer O2- was marked correct and F- was marked incorrect.
3 years ago ·
It has been a crazy productive week, and I’m almost done!
I just finished typing the last problem of the Ionic Formula problem set. I still need to go through and check all of the answers, add the code to link to the new tutorial, add everything to the database, and publish it to SimBucket. It should be up in the next day or two.
6 months ago ·
how do you use this website? when I logon, there is only “Main Menu,” “My Account,” and “Logout.”
6 months ago ·
Great question! I recommend not making an account at all and just using the “Guest Login” feature. Accounts are not recommended, and will be disabled after this school year.
2 months ago ·
Chris,
In the reply above you said you don’t recommend making accounts and that the account feature will be disabled after this school year. I’m so sad to hear that news. Having accounts holds my students responsible for completing the tutorials and the question sets. Just wondering why the decision to drop the accounts. Thank you for all that you do.
2 months ago ·
I understand that accounts are more convenient. I have struggled with this question too. In the end it comes down to cost and privacy. I’m a teacher who does this in my spare time, not a commercial publisher with lawyers on staff. I am not comfortable with storing user information, and to make sure everything is stored in a way that complies with the various privacy laws that have come into play in the past few years is beyond me.
For me, as a solo developer who does this in my spare time, it is not worth the risk.
For the past few years I have been having my own students submit selfies of their completion screens. This is actually a better way to verify that a student did it, and the privacy concerns are minimal, as my students already shoot videos and post them to our school’s learning management system.