Chemistry

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Across
  1. 5. A section of the periodic table
  2. 7. A state of matter in which both the shape and volume are definite
  3. 8. The force of attraction that holds two atoms together to make a molecule or compound
  4. 11. A uncharged particle in an atom
  5. 12. The state of matter that has indefinite volume and shape and in which the molecules move very fast with the highest energy
  6. 13. The most important element for living
Down
  1. 1. The most abundant element of the universe
  2. 2. A positively charged particle found in the center of an atom
  3. 3. a very small particle that has a negative charge of electricity
  4. 4. The amount of matter or stuff that makes up and object
  5. 6. The smallest form of matter
  6. 8. Two or more atoms of an element chemically combined
  7. 9. The study of matter
  8. 10. The state of matter in which the molecules slide past each other and move at a medium speed