Across
- 5. unreactive
- 8. a lightweight metal
- 11. a positive ion
- 13. group 1 metal
- 15. a bond formed by sharing electrons
- 17. tell you how many shells an atom has
- 18. contains (OH)- ions
- 19. join atoms together
- 21. left side of the periodic table
Down
- 1. gain of electrons
- 2. tells you about the properties of an element
- 3. part of a conductor in which electricity flows
- 4. a bond where there are delocalised electrons
- 6. loss of electrons
- 7. a type of distillation
- 9. a bond formed by donating electrons
- 10. dihydrogen oxide
- 12. neutalises an alkali
- 14. the molecular mass of a compound in grams
- 16. an ion that goes to the anode
- 20. where the electrons are