Across
- 2. mixture that is not uniform in composition
- 5. when two different atoms combine
- 8. elements along zig-zag line on right side of periodic table
- 10. shininess
- 16. organized representation of all 118 elements
- 17. very reactive metals in group 17
- 18. elements on left side of periodic table (except hydrogen)
- 19. basic building blocks of matter
- 25. mixture that is uniformly distributed
- 26. gases in group 18
Down
- 1. number of protons in an atom
- 3. ability to conduct heat and electricity
- 4. when atoms (same or different) combine
- 6. seven horizontal rows on periodic table
- 7. metals in group 2
- 8. physical blend of two or more substances that are not chemically combined
- 9. carry a positive charge
- 11. have a negative charge
- 12. have no charge
- 13. ability to be drawn into thin wires
- 14. eighteen vertical columns on periodic table
- 15. metals in group 1
- 20. substance the opposite of a mixture (elements, molecules, compounds)
- 21. names of different atoms
- 22. mass weight of protons and neutrons in nucleus
- 23. all things are made of this
- 24. elements on right side of periodic table