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The Periodic Table: A Quick Review

The Periodic Table: A Quick Review. What is the atomic symbol of oxygen? O What is the atomic number of calcium (Ca)? 20 How many total electrons does a sodium atom (Na) have? 11 What is the atomic weight of a helium atom (He)? 4 amu How many protons does an atom of carbon (C) have? 6

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The Periodic Table: A Quick Review

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  1. The Periodic Table: A Quick Review What is the atomic symbol of oxygen? • O What is the atomic number of calcium (Ca)? • 20 How many total electrons does a sodium atom (Na) have? • 11 What is the atomic weight of a helium atom (He)? • 4 amu How many protons does an atom of carbon (C) have? • 6 How many neutrons are in the nucleus of a neon (Ne) atom? • 10 How many electron are in the outer shell of nitrogen (N)? • 5

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