Elements and Atoms

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Across
  1. 4. there are more than 100 known_____.
  2. 5. particle that has a positive charge
  3. 6. particle in an atom that has a negative charge
  4. 7. There are 18 columns or ____ on the periodic table.
  5. 9. smallest part of an element that can be identified as that element.
  6. 10. element that lacks most of the properties of a metal.
  7. 11. able to be drawn into thin wires
  8. 12. element that has the property of shiny luster, ductility, and malleability.
  9. 13. a repeating pattern
  10. 14. the center or core of an atom
Down
  1. 1. the way a material reflects light
  2. 2. able to be hammered into different shapes
  3. 3. has the same number of protons but a different number of neutrons.
  4. 5. horizontal row of elements in the periodic table.
  5. 8. elements that make up group 17 in the periodic table.
  6. 10. particle in the nucleus of an atom that does not have any charge.