7th Prop of Atoms & Molecules L 1-15 Vocab Crossword

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Across
  1. 6. a bond formed by transferring of electrons
  2. 8. group of chemically connected atoms
  3. 10. negatively charged particle orbiting the nucleus of an atom
  4. 11. electrically neutral (neither + nor - )in the nucleus of an atom
  5. 13. substance that cannot be broken down by ordinary chemical means
  6. 14. molecules formed by sharing of electrons
  7. 15. recycling of carbon for reuse by plants and animals
  8. 17. number of protons plus the number of neutrons in an atom
  9. 18. an element with an electrical charge due to missing or extra electrons
  10. 21. two of the same type of atom bonded together
  11. 22. tight mass of protons and neutrons in the center of an atom
Down
  1. 1. elements in the center columns of the periodic table, labeled with the letter B
  2. 2. adding of oxygen to a molecule
  3. 3. positively charged particle (+) in the nucleus of an atom
  4. 4. removal of oxygen from a molecule
  5. 5. two or more different kinds of atoms bonded together
  6. 7. elements on the periodic table between the metals and nonmetals
  7. 9. bond formed when thousands of atoms freely share their electrons
  8. 12. row of the periodic table
  9. 16. column of the periodic table
  10. 19. number of protons in an atom
  11. 20. non-reactive