Across
- 1. element with a mass/mole of 281.
- 3. a well-supported explanation of observations.
- 5. statement that summarizes the relationship between variables.
- 7. a substance made up of two or more different chemical elements combined in a fixed ratio.
- 8. a simple substance that cannot be broken down into smaller parts or changed into another substance.
- 9. the unit of measurement in the International System of Units (SI) for amount of substance.
Down
- 2. 6.02x10^23 (2 words)
- 4. element with a mass/mole of 282.
- 6. the 84th element on the periodic table