Chemical Bonds

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Across
  1. 6. Chemical reaction that requires chemical bonds releasing heat.
  2. 8. Links between atoms that determine its identity.
  3. 9. Group of atoms bonding together.
  4. 10. Chemical reaction that requires energy.
Down
  1. 1. The formula for a molecule. ex: CO2, H2O
  2. 2. Electrons on the outermost shell of an atom.
  3. 3. A change in its identity, forming a new substance.
  4. 4. Particles that make up everything and consist of three sub particles, protons, neutrons, electrons.
  5. 5. Sharing valence electrons
  6. 7. Transferring valence electrons