chemistry

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Across
  1. 2. which shell can only hold up to 2 electrons
  2. 5. are hard, shiny, ductile
  3. 6. what bonding holds a compound together
  4. 7. law of ___________ of mass
  5. 10. shows the number and type of atoms in an element or compound
  6. 11. a subatomic particle with a charge of 0
Down
  1. 1. atoms with the same number of protons but different numbers of neutrons
  2. 3. a subatomic particle with a mass of 0
  3. 4. symbol is Naf
  4. 8. where the protons and neutrons are held
  5. 9. a subatomic particle with a charge of +1