Chemistry

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Across
  1. 3. A chemical combination of two or more particles
  2. 6. An element that can lose electrons easily and form metallic bonds
  3. 7. Positively charged subatomic particle
  4. 9. Negatively charged particles with negligible mass
Down
  1. 1. In
  2. 2. Existence of a chemical element intwo or more forms
  3. 4. An anion containing oxygen
  4. 5. A solution that resist pH change upon the addition of an acid or a base
  5. 6. Any substance that occupies space and has a mass
  6. 8. Neutral charged particle