Outline 8 Science 10 Crossword

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Across
  1. 3. An abbreviation of the element name
  2. 5. The number of electrons Magnesium has
  3. 7. The name of the element Ba
  4. 8. A substance in which two or more different elements are CHEMICALLY bonded together
  5. 10. Electrons have a _________ charge
  6. 12. a subatomic particle without an electric charge
  7. 13. Atomic ______ tells you how many protons or neutrons there are
  8. 16. Has 8 electrons
  9. 17. A chemical ______ is a process in which atoms of one or more substances are rearranged to form different substances
  10. 18. Atomic _____ is the number of protons and neutrons in the nucleus of an atom
  11. 19. The name of the element Kr
Down
  1. 1. Protons have a ________ charge
  2. 2. The name of the element Ta
  3. 4. The 1st element on the periodic table
  4. 6. The 20th element of the periodic table
  5. 9. Has 6 electrons
  6. 11. The number of electrons boron has
  7. 14. A substance composed of a single kind of atom.
  8. 15. Two or more substances that are mixed together but are NOT chemically bonded.