Across
- 2. Not metal
- 5. Negatively charged particle
- 6. Elements are organized on this table
- 8. Transfer of electrons
- 11. Iron, gold, silver etc.
- 13. Substance at end of chemical reaction
- 14. Energy is absorbed
- 16. Produced by taking/adding electrons from a neutral atom
- 17. Ability of a substance to react chemically with another substance
- 19. A compound is made from a simpler materials
- 21. Substance present at beginning of chemical reaction
- 23. Energy is expelled
- 24. Does the object float or sink? What is the objects __
Down
- 1. Sharing of electrons by atoms
- 3. Numbers and letters together to form a math problem
- 4. Same mass as proton but without electric charge
- 7. Positive and negative ions switch places
- 9. Compound is broken down into simpler compounds
- 10. Compound with carbon and hydrogen combine with oxygen gas to produce carbon dioxide and water
- 12. Result can be undone or returned back
- 15. result cannot be undone, changed at the molecular level
- 18. One element starts by itself but then replaces another
- 20. Subatomic particle
- 22. Atoms of the same element with different numbers of neutrons