Chemistry

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Across
  1. 1. It has a electric charge and it's small
  2. 4. It intermediate between those of metals and solid nonmetals
  3. 6. It's a effective conductor of electricity and heat
  4. 7. What a substance or element that not a metal
  5. 9. It's made up of three tiny kinds of particles
Down
  1. 2. A mathematical function that describes the wave behavior
  2. 3. A substance whose atoms have same number of protons
  3. 5. A subdivision of electron shells separated by electron orbitals.
  4. 7. When it's not positive or negatively charged
  5. 8. It consists nuetrons and protons