Atoms Molecules And Bonds

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Across
  1. 4. the energy required to break a chemical bond and form neutral isolated atoms
  2. 5. Weak chemical bond formed when the partially positive hydrogen atom is attracted to the partially negative atom
  3. 9. electrons involved in bonding and sharing located on the outer most shell
  4. 11. basic unit of a chemical element
  5. 12. a chemical bond resulting from the attraction between oppositely charged ions
  6. 13. A group of atoms bonded together
  7. 15. positively charged particle in the nucleus
Down
  1. 1. atoms tend to gain lose or share one or more of their valence electrons in order to achieve a full outer shell
  2. 2. atoms gain more than 8 valence electrons
  3. 3. bond that can not be properly represented by lewis structures
  4. 6. an ion containing a number of ions
  5. 7. a formula in which atomic symbols represent nuclei and inner shell electrons
  6. 8. chemical bond formed when two atoms share two pairs of electrons
  7. 10. Attraction between atoms that share one or more pairs of outer shell eletrons
  8. 14. Negatively charged particle that moves around the nucleus of an atom