Challenge it! Crossword

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Across
  1. 1. This atom has three electrons
  2. 3. orbit the nucleus of an atom.
  3. 6. examples: saltwater, chocolate milk.
  4. 7. no charge or neutral.
  5. 8. Compound Symbol: H 2 O
  6. 10. positively charged.
Down
  1. 2. Periodic Table Position: Period1,Group1
  2. 4. 2 or more atoms chemically bounded.
  3. 5. core of an atom
  4. 9. building blocks of matter.