Across
- 3. number of protons
- 8. Abreviation of element
- 9. does not combine with other elements
- 11. Outer atom, where electrons are found
- 12. Horizontal row
- 13. elements weight
- 15. Electron in outer orbital
- 22. Made the periodic table
- 25. two different atoms
- 26. a ductile element that is a very good conductor
Down
- 1. heat lost
- 2. mass stays constant
- 4. Center of an atom
- 5. metal coated on another metal
- 6. Farthest you can break down an element
- 7. Element in the same column
- 10. result of a chemical reaction
- 14. unique electric properties; semiconductor
- 16. poor conducter, very brittle
- 17. heat generator
- 18. Particles around the nucleus, negative charge
- 19. Pure substance, one atom
- 20. Particles in the nucleus, positive charge
- 21. causes reaction
- 23. combination of atoms
- 24. Particles in the nucleus, neutral charge