Atoms and Bonding Vocabulary

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Across
  1. 1. number below and next to an element symbol
  2. 5. element on the left of the periodic table that is shiny and malleable
  3. 8. formed when atoms combine with ionic bonds
  4. 10. molecule made from two atoms of the same element
  5. 13. a positive ion
  6. 15. positively charged particle in the nucleus
  7. 17. molecule that doesn't contain carbon
  8. 19. number on the periodic table that tells the number of protons
Down
  1. 2. bond formed when two nonmetals share electrons
  2. 3. a charged atom with a different number of electrons and protons
  3. 4. a negative ion
  4. 6. formed when atoms combine with covalent bonds
  5. 7. electron in the outside energy level
  6. 9. neutral particle in the nucleus
  7. 11. smallest building block of matter
  8. 12. number in front of a chemical formula
  9. 14. molecule that contains carbon
  10. 16. negatively charged particle outside the nucleus
  11. 18. element on the right of the periodic table that is dull and brittle
  12. 20. bond formed when a metal transfers an electron to a nonmetal