Chemistry vocab

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Across
  1. 1. consists of two or more elements
  2. 5. building blocks of all matter
  3. 6. word used to describe the outermost electron shell
  4. 8. uncharged particle found in the nucleus
  5. 9. formed when an atom loses electrons
  6. 11. metals found in centre of periodic table
  7. 13. consists of two or more atoms
  8. 16. group that makes 1+ ions
  9. 17. positively charged particle in the nucleus
Down
  1. 1. compounds in which atoms share electrons
  2. 2. indicates the number of nucleons in the nucleus
  3. 3. elements with a full valence shell
  4. 4. negative particle that orbits the nucleus
  5. 5. formed when an atom gains electrons
  6. 7. compounds that have a bond between metals and non-metals
  7. 10. indicates the number of protons in the nucleus
  8. 12. type of ion that has more than one element in it
  9. 14. consists of only one type of atom
  10. 15. group that makes 1- ions