Matter

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Across
  1. 2. Charged atom
  2. 5. High in gases
  3. 6. Smallest particle of an element
  4. 7. Change of state occurs
  5. 8. Gain of energy
Down
  1. 1. Particles lose energy
  2. 3. increased force of attraction
  3. 4. Solids like camphor, naphthalene, and iodine