Atoms, Elements and Compounds

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Across
  1. 2. Where the electrons are found
  2. 3. A big chart that shows all the elements.
  3. 6. The number above the symbol on the periodic table
  4. 8. The tiny building block of everything. All materials are made of atoms.
  5. 13. Subatomic particle with a charge of 0
  6. 14. The middle of an atom
  7. 15. A substance made when two or more different elements are joined together.
  8. 17. A substance made of only one type of atom.
  9. 18. A one or two letter code that represents an element (e.g., O for oxygen).
Down
  1. 1. The link that holds atoms together in molecules and compounds.
  2. 4. Subatomic particle with a charge of -1
  3. 5. The number below the symbol on the periodic table
  4. 7. Two or more atoms joined together.
  5. 9. A combination of symbols and numbers that shows which atoms are in a compound (e.g., H₂O).
  6. 10. The rows on the periodic table
  7. 11. Two or more substances that are not chemically joined and can be separated.
  8. 12. the columns on the periodic table
  9. 16. Subatomic particle with a charge of +1