Across
- 1. Vertical column of elements in the periodic table
- 4. Neutral particle in a nucleus of an atom
- 6. Hydrogen Symbol
- 7. An experiment in which is one or more products of a chemical reaction can escape
- 8. A reaction that takes place when two or more substances form new substances
- 9. Dull, Brittle element that does not conduct electricity.
- 12. Change that results when two or more substances react to create a different substance or substances
- 16. Smallest part of a element
- 17. something that resists electricity
- 19. Invisible negatively charged particle that orbits the neclues of an atom
- 20. Water's chemical formula
- 21. Change of state from liquid to solid
- 22. Gold Symbol
- 23. The most reactive element
- 24. Group 1 elements in the periodic table. Not including oxygen
Down
- 2. Combining of pure substance
- 3. reaction Chemical reaction that absorbs energy
- 5. A compound made from a non-metal and a non-metal
- 10. Change of state from solid to liquid
- 11. orbit of electrons around the nucleus of an atom
- 13. Number of protons in a nucleus
- 14. Slow chemical change that occurs when oxygen in the air reacts with metal
- 15. Gases least reactive non metal
- 18. Gas, Solid and Liquid
- 25. Potassium Symbol