Tags » Periodic Table

Have We Found All The Elements?

Four elements have been added to the periodic table this year, completing the seventh row. However, these new elements are not naturally occurring. Scientists had to create them and overcome a number of challenges to do so.

Gr 9-10 Science

Intro Chem 09 -Periodic Table Part II

I went back to the American Chemical Society’s (ACS) Middleschool Chemistry curriculum and found this great activity for the periodic table that makes the students really look at the periodic table and understand what information the atomic number and atomic mass gives them.   430 more words


Ionization energy

Ionization energy


“How can we measure the amount of energy needed to remove an electron from an atom?”

From common knowledge, we know that if we want to remove an object, it would require energy. 228 more words


An Interactive Periodic Table - thanks TED!

An interactive Periodic Table? Yep! This video Ted-Ed Lesson is  about every element on the periodic table.  Thanks to Jelena of the STAO Curriculum Committee for this cool resource! 8 more words

Gr 9-10 Science

Chemistry Scrabble 

Replace all the tiles with tiles that have only chemical symbols from the periodic table. Some of them would need to be duplicated more than others.


Electron affinity

Electron affinity


“How can we measure the energy used when an electron is added?”

We know that the energy of an atom changes when an electron is added. 113 more words


Chemical Nomenclature

Looking at the ingredient list of some popular processed foods will produce a puzzled look on the typical hacker’s face. Tricalcium phosphate, thiamine mononitrate, zinc proteinate, pyridoxine hydrocloride… just who the hell comes up with these names anyway? 903 more words

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