Periodic Table

123456
Across
  1. 4. a chemical element that is the simplest and lightest of all chemical elements and is normally found alone as a colorless odorless highly flammable gas having two atoms per molecule
  2. 5. It helps chemist keep different elements organized
  3. 6. glossy
Down
  1. 1. A train driver
  2. 2. A drawing of something that is the same thing
  3. 3. To guess a answer
  4. 5. Something that people own