Across
- 4. each element has their own unique _____
- 5. an atom with the same number of protons as another, but a different amount of neutrons
- 6. reaction when energy is absorbed
- 7. negative charged ion
- 10. a change where nothing new is formed
- 11. a substance shown on the periodic table that cant be broken down into smaller parts
- 13. bond between 2 nonmetals
- 14. a charged particle
- 15. inside the nucleus with positive charge
Down
- 1. reaction when energy is released
- 2. bond between a metal and a nonmetal
- 3. inside the nucleus with no charge
- 8. a change where something new is formed through breaking of chemical bonds
- 9. surrounding the nucleus, has a negative charge
- 12. positive charged ion