Across
- 3. Has a boiling point of 1107 C
- 5. Has a density of .998
- 7. A major component of marble
- 11. W or wolfram
- 13. Chemical substances used to make light and smoke
- 14. Measurement of intensity of light
- 15. Bombarded a thin, gold foil with alpha particles
Down
- 1. This produces a burst of green light in its decomposition
- 2. Kilogram per cubic meter
- 4. old name of gold
- 6. 6.0221367X10^23
- 8. old name of silver
- 9. 1/1000000000 of a meter
- 10. Has a noble gas notation of [Ar]3d^2 4s^2
- 12. A pioneer in the study of electromagnetic radiation