Across
- 2. horizontal row of the period table
- 5. element 36 on the periodic table with the symbol Kr
- 7. a condensable gas
- 11. state of matter characterized by having a definite volume but not a definite shape
- 13. a chemical change that forms new substances
- 15. the element with atomic number 8 and we breathe in
- 16. unit of mass equal to the mass of one cubic centimeter
- 17. amount of matter a substance contains or property of matter that resists acceleration
- 20. yellow-colored transition metal
- 21. measure of the amount of light absorbed by a sample
Down
- 1. characteristic of matter fixed by its state
- 3. substance formed as a result of a chemical reaction
- 4. point temperature at which the solid and liquid phases of matter coexist in equilibrium
- 6. radioactive gas with the element symbol Rn and atomic number 86
- 8. distinct form of matter with uniform chemical and physical properties
- 9. metal with element symbol Ga and atomic number 31
- 10. the number of electrons needed to fill the outermost electron shell
- 12. the three-dimensional space occupied by a solid, liquid, or gas
- 13. ribonucleic acid, a molecule that codes for amino acid squences
- 14. a compound formed by one oxygen atom and two hydrogen atoms
- 18. ionic compound formed by reacting an acid and a base
- 19. state of matter characterized by having neither a defined shape nor defined volume