chem 100 chapter 2

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Across
  1. 2. A pure chemical substance, which cannot be broken down into simpler substances, consisting of a single type of atom.
  2. 6. The number of protons and neutrons in an isotope.(2 words)
  3. 8. An interaction between substances whereby electrons are rearrange, transferred, or shared.(2 words)
  4. 11. The distance between the peak of one wave and the peak of the next wave.
  5. 12. A vertical column of elements on the periodic table. Also called a family.
  6. 13. A neutral particle within an atom's nucleus.
  7. 14. Another term for light.(2 words)
  8. 15. Specific wavelengths of emitted light that are characteristic of one element.(2 words)
  9. 16. The lowest possible energy level that an electron can occupy in an atom.(2 words)
Down
  1. 1. The number of protons in the nucleus of an atom.(2 words)
  2. 3. Atoms of the same element that have different numbers of neutrons.
  3. 4. The dense, positively charged region within an atom that contains protons and neutrons.
  4. 5. An imaginary location that an electron can occupy in an atom.(2 words)
  5. 7. A negatively charge particle within an atom.
  6. 9. For an electron, any energy level higher in energy than its ground state.(2 words)
  7. 10. A horizontal row of elements on the periodic table.