Lesson 21 and 22!

Lesson 21 was very short! We basically just learned that noble gases don't combine with other electrons because they already have 8 valance electrons. Also, we learned that you can predict a chemical formula using the periodic table. However, what we mostly learned about 21 was playing the game salty eights. What we had to do was make a correct chemical compound and we get points for it. It was a card game, and first we passed out the cards, then we had to figure out if we had pairs to make a correct compound keeping in mind the zero charge rule. Depending on how many cards you used, you got a certain amount of points! Mikalea won that game... Haha

Lesson 22 we took a bit more notes and played another game! Vocab word! A polyatomic ion is an ion composed of a group of atoms with an overall positive or negative charge. Most poly atomic ions are anions. (good to know!) also, we copied a chart that really helps figure out the polyatomic formula. SO4 2= sulfate OH - = hydroxide NO3-= nitrate CO3 2-= carbonate and NH4+= ammonium! We also played another card game that had the basic same idea, you had to make a correct compound by looking at the cards and getting points for the amount of cards used!

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