Showing posts with label periodic trends. Show all posts
Showing posts with label periodic trends. Show all posts

April 10, 2026

How do I tell my teacher the fluorine cation doesn't exist?

From reddit

See, it's funny because the teacher gave the student an F+ on his or her (possibly AI-generated) book report, but the student is claiming not to know that the F+ is meant to be a grade and not a chemical notation for a fluorine atom that has lost an electron. 

Fluorine atoms, being the most electronegative atoms on the planet, are incredibly unlikely to lose an electron rather than to gain an electron.

See, it's funny because of periodic trends!
 

March 6, 2023

Reimagining the Periodic Table

This week's video recommendations comes to us from one of my current students, Nick, who has a refreshing curiosity about chemistry. He also recommended the taste test of the alkali metals video and says he's tasted some of those alkali salts - which is not to be recommended, folks.

I've seen the forms of the periodic table that are shown - cut and pasted really - in the above video and even have a Lego version of Giguere's 3d periodic table in my classroom.

I really like the above video because it shows that there's still more than one way to show the periodic law.

August 20, 2015

Atomic Bonding Song



Are those just big light covers from Pier One or something that they're wearing?

If so, they're fairly well turned into atom costumes.

Honestly, if my students understood everything that these two folks were singing about by the end of our bonding chapters, I would be pretty happy.

I don't get, though, how at 4:10 chlorine lets go of an electron.