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Understanding Oxidation Numbers and Ionic Compounds

This lesson covers oxidation numbers, which represent the charge on an atom after achieving an octet configuration, exemplified by Na1+ and O2-. The main goal is to learn how to name ionic compounds correctly using the crisscross method. Additionally, we will explore Yttrium (Y), an element with applications in extending the life of spark plugs and in powerful lasers. Use this knowledge to prepare for the upcoming quiz on Chapter 16 and complete the assigned homework from pages 19-22.

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Understanding Oxidation Numbers and Ionic Compounds

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  1. Warm up 12/05/13 • Question: What is oxidation number? • Answer: • a number representing the charge on an atom after getting an octet. • Ex: Na1+ O2- • Goal: I will learn how to name ionic compounds.

  2. ELEMENT OF THE DAY • 39 – Yttrium – Y • Yttrium is named after a village in Sweden. • Yttrium is used to extend the life of spark plugs. • Yttrium aluminum garnet is used in powerful lasers that can be bounced off of reflectors on the moon to calculate the distance.

  3. Bellwork/ POWER DOWN • Review HW • Notes – naming ionic & crisscross method • practice • Homework • pg 19-22 • Ch 16 quiz Tuesday Agenda

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