Across
- 3. The name of the Russian Chemist who started the development of the periodic table
- 4. Found in the nucleus and have a neutral charge
- 8. What is the atomic number for Sulphur written as a word
- 12. The burning of a substance in oxygen
- 14. What is the name for Lead on the periodic table?
- 15. Word that means indivisible
- 17. What is the name for Mercury on the periodic table?
- 18. The name of a table that arranges elements based on their properties
- 20. First person to propose the issues behind Modern Atomic Theory in 1800s
- 22. An example of a chemical element starting with H
- 24. Reaction that occurs when acid is added to a base forming water and at least one substance
- 25. defines the characteristics of each element and how many protons are present
Down
- 1. Negative sub-atomic particle
- 2. Atoms have the same unique amount of protons
- 5. An example of this is Corrosion and rusting
- 6. The number of protons and neutrons is equal to this in an atom
- 7. English term for something that cannot be further divided
- 9. Chemicals that will change colour when added to an acid or base
- 10. When elements combine together chemically, they produce compounds
- 11. Positive sub-atomic particle
- 13. Two or more substances combine to produce a single new substance
- 16. Each one of these has a maximum number of electrons
- 19. What is the name of the element Polonium on the periodic table
- 21. What is the name for Arsenic on the periodic table?
- 23. A single compound breaks down into two or more simpler products