Across
- 3. branch of chemistry that identifies the components & composition of materials
- 7. number of particles in exactly one mole of a pure substance
- 8. zeros at the end of a number and to the L of a printed decimal ______ significant
- 10. type of properties that depend on the amount of matter present
- 13. any substance that has a definite composition
- 14. noble gas w 36 e-
- 15. mass of one mole of a pure substance
- 19. number of sig figs in 4078
- 20. ratio of mass to volume
- 21. general term for a specific isotope of an element
- 22. one branch of chemistry studies primarily this element
Down
- 1. a testable statement
- 2. measure of the amount of matter
- 4. an e- occupies the lowest energy level that can receive it
- 5. lowest energy state
- 6. amount of a substance that contains as many particles as there are atoms in exactly 12g of Carbon-12
- 9. calculated by looking at the accepted v. experimental values
- 11. 14 elements with atomic numbers 90-103
- 12. smallest particle of an element that retains the chemical properties of that element
- 16. atoms of the same element that have different masses
- 17. number of protons of each atom of an element
- 18. amount of space occupied by an object