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Name ______________________________ Class ___________________ Date __________________ Activity Vocabulary Activity Atomic Anagrams After you finish reading the chapter, try this puzzle. Use the definitions below to unscramble the vocabulary words. 1. weighted average of the mass of all naturally occurring isotopes of the same element MICTOA SAMS __________________________________________________ 2. the smallest unit of an element that maintains the properties of an element MOATS _________________________________________________________ 3. positively charged particle in the atom TORPNO ________________________________________________________ 4. made up of protons and neutrons UCSELUN ______________________________________________________ 5. particle in the atom that has no charge TRONUNE ______________________________________________________ 6. atoms with the same number of protons but different numbers of neutrons SOOTPIES ______________________________________________________ 7. negatively charged particle in the atom CLEENROT _____________________________________________________ 8. number of protons in a nucleus MICOTA BRUMEN _______________________________________________ 9. regions where electrons are likely to be found RENECTOL SOCUDL _____________________________________________ 10. SI unit used to express the mass of atomic particles TMCOAI SASM NTUI _____________________________________________ 11. sum of protons and neutrons SAMS BRUNEM _________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 51 Introduction to Atoms