Across
- 6. a type of substance which only melts/boils at a sharp temperature
- 7. the lightest element currently known
- 9. A group of elements bonded
Down
- 1. The name of the group with non reactive elements
- 2. This is within aa periodic table, it shows the valence electron within an element
- 3. What is the chemical that speeds up a reaction called?
- 4. The result of irons+sulfer+oxygen
- 5. This is within a periodic table, it shows the amount of shells within the elements
- 8. What is the relative mass within an electron (ANS:one/????)