Across
- 2. The term used to describe electrons in the outer-most shell
- 6. A model that was previously used to describe the structure of an atom (2)
- 11. A common compound made up of Phosphorus and Oxygen atoms
- 14. A type of reaction that involves acids and bases
- 15. Most elements in the periodic table are found in this physical state
- 16. The name used to describe each of the Group VII elements
- 18. The term used to describe a substance that cannot be dissolved
- 19. The scientist who carried out the gold-foil experiment
- 22. A substance that exhibits properties of metals and non-metals
- 23. A particle with no charge found in the nucleus of an atom
- 24. The name given to each element in Group VIII (2)
- 28. Group I elements are knowns as this type of metal
- 29. The name of the scientist who developed the theory of electron shells
- 30. The term that describes an element with the same atomic number but different mass number
Down
- 1. The element that has the atomic number 56
- 3. Non-metals tend to form compounds with this type of bond
- 4. The term that describes the attraction between two atoms as a result of sharing or transferring electrons
- 5. The shorthand way of writing the name of a compound
- 7. A type of indicator
- 8. A type of reaction where compounds breakdown into simpler compounds or elements
- 9. A substance made up of two or more element chemically combined
- 10. A physical property of metals
- 12. The name given to the rows in the periodic table
- 13. An example of this type of substance is soil
- 17. The element with the symbol Zn
- 20. A positively charged species
- 21. The compound, table salt, is formed by this type of bond
- 25. A physical property of non-metals
- 26. The name given to the columns in the periodic table
- 27. The shorthand way of writing the name of an element