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WARM UP 11/08/13 Question: What is atomic number? Answer: The number of protons in the atom. Each element has a unique atomic # Goal: I will explain atomic number & mass number.

W ARM UP 11/08/13 Question: What is atomic number? Answer: The number of protons in the atom. Each element has a unique atomic # Goal: I will explain atomic

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Page 1: W ARM UP 11/08/13 Question: What is atomic number? Answer: The number of protons in the atom. Each element has a unique atomic # Goal: I will explain atomic

WARM UP 11/08/13Question: What is atomic number?

Answer: The number of protons in the atom.

Each element has a unique atomic #

Goal: I will explain atomic number & mass number.

Page 2: W ARM UP 11/08/13 Question: What is atomic number? Answer: The number of protons in the atom. Each element has a unique atomic # Goal: I will explain atomic

ELEMENT OF THE DAY27 – Cobalt – CoCobalt steel is one of the hardest steel alloys and is used in drills and machine bits.

Cobalt compounds are often blue, and are used to tint glass.

60Co is a highly radioactive version of cobalt that is present in nuclear fallout.

Page 3: W ARM UP 11/08/13 Question: What is atomic number? Answer: The number of protons in the atom. Each element has a unique atomic # Goal: I will explain atomic

AGENDA-Bellwork / Fav Fri-Atomic Number-Mass number & Isotopes-M & M reminder!

-Homework-pg 21-24-Holiday (red & green) pretzel or mint M&Ms for extra credit