Crossword Акнура

123456789101112
Across
  1. 2. smallest form of a chemical element
  2. 4. mixture made up of multiple substances
  3. 7. the center of an atom, made of protons and neutrons
  4. 10. subatomic particle with a positive charge
  5. 11. state of matter that takes the shape of its container
  6. 12. the amount of matter in an object
Down
  1. 1. subatomic particle with no charge
  2. 2. number number of protons in an element
  3. 3. subatomic particle with a negative charge
  4. 4. state of matter with a definite shape and volume
  5. 5. state of matter with no definite shape or volume
  6. 6. the amount of mass per volume
  7. 8. molecule that has gained or lost electrons
  8. 9. state of matter similar to gas