Chapter 2 Atoms Ions and Molecules

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Across
  1. 2. - the collective mass of protons and neutrons in the nucleus of an atom
  2. 3. - two same types of atoms that share electrons equally
  3. 5. - two oppositely charged atoms lose or gain electrons to form these bonds
  4. 7. - located above a chemical symbol, this number refers to the quantity of protons in an atom of an element
  5. 9. - particles with a negative charge and a low mass
  6. 10. - particles with a neutral charge
  7. 13. - a different number of neutrons in the same element
  8. 14. - a partially positive hydrogen atom that is weakly bonded to a partially negative atom
Down
  1. 1. - molecules that do not dissolve when in contact with water
  2. 4. - two different types of atoms that share electrons unequally, due to the electrons being attracted to the more electronegative atom
  3. 6. - an atom or groups of atoms with a positive charge
  4. 8. - a chemical that can allow electricity through when dissolved in water
  5. 11. - a molecule that is unstable due to an unpaired electron
  6. 12. - particles with a positive charge