Across
- 6. emitted by a radioactive source
- 7. study of elements, chemicals and matter
- 8. The element we breathe to live
- 11. 1st state of matter
- 12. what an element has, an Atomic ____
- 13. composed from a proton and a neutron
- 14. Smallest part of matter
- 17. Made of Hydrogen and Oxygen
- 20. horizontal rows of elements
- 21. The majority of the Air
- 23. We are based on this element
- 24. First Component of Salt
- 25. What matter is made of
Down
- 1. Second Component of Salt
- 2. Explosive Gas
- 3. positive charge of an atom
- 4. Main Component of bone
- 5. neutral charge of an atom
- 9. 3rd state of matter
- 10. vertical columns of elements
- 15. periodic _____ of elements
- 16. negative charge of an atom
- 18. 4th state of matter
- 19. 2nd state of matter
- 20. radioactive explosive component of an atomic bomb
- 22. converted to different substances