Vocabulary is not scary (numbers are in some clues)

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Across
  1. 1. a combination of elements that aren't chemically bonded
  2. 3. The formula for hydrogen peroxide
  3. 5. The best 8th grade science teacher in peak charter academy
  4. 7. a combination of protons, electrons, and neutrons
  5. 9. Silicon is in this section of the periodic table
  6. 10. the 26th element on the periodic table
Down
  1. 2. the element thats atomic weight is 183.84
  2. 3. the first element on the periodic table
  3. 4. you ______
  4. 6. building block of everything
  5. 8. a combination of elements that are chemically bonded