Crossword Puzzle Kesleigh

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Across
  1. 3. one or two letter code that stand for an element
  2. 5. a row of elements that have a certain proprties in common
  3. 6. small number to the right of an element symbol that shows how many atoms of that element
  4. 9. the basic unit of a chemical element
  5. 10. number of protons and neutrons
  6. 11. the ability to combine and to chemically bond with each other
  7. 13. substaces that are the building blocks of all matter(made of one kind of atom)
  8. 14. compounds that include Carbon
  9. 15. a chart where all elements are organized into periods and steps of the periodic table
Down
  1. 1. the number placed just before the chemical formula;number of destryed
  2. 2. molecule that is made up of more than one type of element
  3. 3. a way of describing the number of atoms that make up a molecule or compound
  4. 4. electrons found in the outermost shell and determine the chemical properties such as reactivity
  5. 7. high luster, good conductor, malleable, found on the left of periodic table
  6. 8. compound or element that is the result of a chemical reaction
  7. 12. number of protons in the nucleus of one ato of an element