Across
- 2. a chemical, present at the start of a chemical reaction, that is used up during the reaction
- 4. Bromide the chemical name for LiBr
- 5. Compound a pure substance formed from two or more non-metals
- 8. The Group 2 elements, the most reactive group on the periodic table
- 10. molecule a molecule consisting of only two atoms of either the same or different elements
- 11. rapid reaction of a substance with oxygen to produce oxides
- 16. a compound that separates into ions when it dissolves in water, producing a solution that conducts electricity
- 18. a solid formed from the reaction of two solutions
- 20. Property A characteristic behavior that occurs when the substance changes into something new
- 22. Oxide the chemical name for BaO
- 23. Earth Metals The Group 2 Elements
Down
- 1. electrons outer electrons
- 3. Ion an ion made up of more than one atom that acts as a single particle
- 6. (II) Oxide the chemical name for PbO
- 7. ions with a positive charge
- 8. acid the chemical name for HCI
- 9. for molecular compounds what's the prefix for 4
- 12. Gases The Group 18 elements
- 13. Oxide the chemical name for BeO
- 14. Property a description of a substance that does not involve forming a new substance (colour, texture and density)
- 15. a particle in which atoms are joined by covalent bonds
- 17. Neither acidic or basic; with a pH of 7
- 18. a chemical that is produced during a chemical reaction
- 19. ions that have negative charges
- 21. Bond The attraction that holds oppositely charged ions together in a compound
- 24. Metal The Group 1 Elements