Across
- 2. group 1 on periodic table
- 6. neutral subatomic particle
- 7. A chemical bond formed when two atoms share two
- 12. A bond between atoms or ions that allows molecules to form
- 13. the basic unit of a chemical element.
- 14. negatively charged ion
- 17. able to be hammered or pressed permanently out of shape without breaking or cracking.
- 18. a thing that is composed of two or more separate elements; a mixture.
- 19. positive subatomic particle
Down
- 1. all of the atoms (or ions) are arranged in a regular grid pattern
- 3. dissolved in water
- 4. forms of the same element that contain equal numbers of protons but different numbers of neutrons
- 5. a part or aspect of something abstract, especially one that is essential or characteristic
- 8. group 2 on periodic table
- 9. positively charged ion
- 10. When a compound combines with oxygen gas to form water,
- 11. group 17 on periodic table
- 15. and carbon dioxide
- 16. negative subatomic particle
- 20. group 18 on periodic table