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Explore atomic numbers, masses, protons, neutrons, and electrons of elements such as Chlorine, Boron, Sodium, and Helium. Test your knowledge of atomic structure and composition in this educational challenge.
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Atomic Math Challenge #1 T. Trimpe 2008 http://sciencespot.net/
2HeHelium4.003 5BBoron10.81 11NaSodium22.990 17ClChlorine35.453 Use the information provided to answer the questions. • 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?
2HeHelium4.003 5BBoron10.81 11NaSodium22.990 17ClChlorine35.453 The answers are … 17 • 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? 10.81 or 11 11 2 17 35.453or 35 12 4.003 or 4