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T. Trimpe 2008 http://sciencespot.net/ Atomic Math Challenge #1 T. Trimpe 2008 http://sciencespot.net/

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Presentation on theme: "T. Trimpe 2008 http://sciencespot.net/ Atomic Math Challenge #1 T. Trimpe 2008 http://sciencespot.net/"— Presentation transcript:

1 T. Trimpe 2008 http://sciencespot.net/
Atomic Math Challenge #1 T. Trimpe

2 Use the information provided to answer the questions.
5 B Boron 10.81 2 He Helium 4.003 11 Na Sodium 17 Cl Chlorine What is the atomic number for Chlorine? What is the atomic mass for Boron? How many protons are in an atom of Na? How many neutrons are in an atom of He? How many electrons are in an atom of Cl? How many protons and neutrons would be in an atom of Chlorine? How many neutrons are in an atom of Na? How many protons and neutrons are in an atom of Helium?

3 The answers are … What is the atomic number for Chlorine? 17
5 B Boron 10.81 2 He Helium 4.003 11 Na Sodium 17 Cl Chlorine What is the atomic number for Chlorine? What is the atomic mass for Boron? How many protons are in an atom of Na? How many neutrons are in an atom of He? How many electrons are in an atom of Cl? How many protons and neutrons would be in an atom of Chlorine? How many neutrons are in an atom of Na? How many protons and neutrons are in an atom of Helium? 17 10.81 or 11 11 2 17 or 35 12 4.003 or 4

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