Atoms and the Periodic Table-Chapter 9-Corryn Willson

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Across
  1. 2. a vertical column in the periodic table; also known as a family of elements
  2. 5. an abbreviation for an element or atom
  3. 6. a representation of a system that helps us predict how the system behaves
  4. 9. a positively charged subatomic particle in the atomic nucleus
  5. 10. a small, discrete packet of light energy
Down
  1. 1. a region of space around the atomic nucleus within which electrons may reside
  2. 3. a count of the number of protons in the atomic nucleus
  3. 4. any material that is made up of only one type of atom
  4. 7. a chart in which all known elements are listed in order of atomic number
  5. 8. the pattern of frequencies of electromagnetic radiation emitted by the atoms of an element; considered to be an element's fingerprint