Elements, Compounds and Mixtures

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Across
  1. 2. compounds are held together by what type of bonds
  2. 5. protons/electrons there are in an element
  3. 8. Where every element known to human kind is found in
  4. 10. vertical columns in the periodic table
  5. 11. what is the term used when adding protons and neutrons together
  6. 12. Every element has its own name, atomic number and what else
  7. 13. bubbles in a liquid, fizzed
  8. 15. Made up of two or more different substances that are not chemically joined together
  9. 16. combination of two or more different elements chemically joined together
Down
  1. 1. a mixture is a....combination
  2. 3. an element is a what type of substance
  3. 4. a mixture can be...using different techniques
  4. 6. can conduct electricity and are malleable
  5. 7. horizontal columns in the periodic table
  6. 9. how many elements in the periodic table
  7. 14. poor heat conductors and are brittle