Across
- 2. H2O.
- 5. NaCl - common table salt.
- 6. when inhaled, your voice becomes squeaky.
- 8. has the symbol 'C'.
- 11. has the chemical symbol 'Fe'.
- 12. the first element on the periodic table.
- 13. when rubbed against lithium, it creates a liquid alloy.
- 14. only has one type of atom.
- 15. consists of two or more types of atoms.
Down
- 1. a metal that is a liquid at room temperature.
- 3. the name of the first group in the periodic table
- 4. has the chemical symbol 'Li'.
- 7. element number 87. Begins with Fra...
- 9. a compound of oxygen and another element is called an...
- 10. An element that lives as a pair of atoms.