Across
- 4. How likely an element is to form bonds with other elements
- 6. A form of matter that has mass but no definite shape
- 8. A chemical that forms a salt when it reacts with metal
- 10. One or two letter abbreviation for an element
- 11. Subatomic particle with a positive charge
- 12. An ion with a positive charge
- 14. Elements with metal and nonmetal properties
- 15. Symbol for atomic mass unit
- 16. A vertical column of elements
- 17. A horizontal column of elements
- 18. Anything that has mass or volume
- 20. Region surrounding the nucleus where the electrons are located
- 24. The number of protons and neutrons in an atom
- 27. Another name for period
- 28. Substance that cant be broken down into a simpler substance by ordinary chemical means
- 29. A measure of a solution's ability to conduct electricity
- 30. Basic particles of the chemical elements
Down
- 1. Subatomic particle with a negative charge
- 2. Another name for a group
- 3. An electron in the outermost energy level
- 5. An atom that has a positive/negative electric charge
- 7. The number of protons in an atom
- 9. Smallest unit of a compound that has all of its properties
- 13. An atom that has a different number of neutrons than another atom of the same element
- 19. Elements that are good conductors of electricity and heat
- 21. Region consisting of protons and neutrons in the center
- 22. The process of adding or removing electrons from an atom
- 23. Elements that are poor conductors of electricity and heat
- 25. Subatomic particle with a neutral charge
- 26. An ion with a negative change