Chemistry

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Across
  1. 4. particle with no charge found in the nucleus.
  2. 6. A particle with a positive charge found in the nucleus.
  3. 7. study of substances and how they change.
  4. 9. A pure substance consisting of only one type of atom.
  5. 11. A negatively charged particle orbiting the nucleus.
  6. 12. The smallest unit of an element
  7. 14. A variation of an element with a different number of neutrons
  8. 15. amount of matter in an object.
Down
  1. 1. A group of two or more atoms bonded together.
  2. 2. The energy of motion.
  3. 3. possible energy
  4. 5. The amount of space an object takes up.
  5. 8. Anything that has mass and takes up space.
  6. 9. Cloud The space around the nucleus where electrons are found.
  7. 10. The central part of an atom.
  8. 13. charged atom, formed by gaining or losing electrons.