Across
- 3. Most reactive non-metals, group 17 on the periodic table
- 6. The smallest part of an element
- 7. An experiment in which no reactants or products can escape
- 8. Combination of symbols representing a compound
- 9. A neutral charge particle in an element core
- 12. How fast a chemical reaction occurs
- 16. A law that states mass is neither create or destroyed in chemical reactions
- 22. A negatively charged particle in an element
- 23. An Atom that has become electrically charged
- 24. Substance that helps the rate of reaction occur faster
- 25. An element with metallic and non-metallic qualities
Down
- 1. The core of an element; contains Protons and Neutrons
- 2. Organic catalyst
- 4. Not as reactive, group 2 on periodic table
- 5. A Pure substance formed when 2 nonmetals combine
- 10. A column in the periodic table
- 11. An experiment in which reactants and products can escape
- 13. Mass of one atom in an element
- 14. A row in the periodic table
- 15. A positively charged particle in an element
- 17. Most reactive metals, group 1 on periodic table
- 18. A reaction which is irreversible, creates a new substance, etc.
- 19. A section of elements on the periodic table that does not conduct electricity, is dull and brittle
- 20. Number of protons in an atom
- 21. A pure substance formed by a metal and non-metal