Across
- 4. an emission spectrum that consists of a continuum of wavelengths
- 6. an emission spectrum consisting of seperate isolated lines
- 7. every compound is formed of elements combined in specific ratios by mass that are unique for that compound
- 9. emissions from cathodes
- 10. an atom's lowest energy state
- 11. the dense central part of an atom made up of protons and neutrons
- 12. a particle in an atom's nucleus with no charge
- 14. a particle in an atom's nucleus with a +1 charge
- 16. concept that matter behaves like a wave
- 18. having to do with quantities in which there are only seperate, discrete values allowed
Down
- 1. the number of protons in the nucleus of an atom
- 2. a region around the nucleus containing a specified group of electrons in sublevels
- 3. smallest particle capable of chemical reactions
- 5. statement that it is impossible to emasure two properties of an object, such as position or momentum, simultaneously with infinite precision
- 8. a packet of electromagnetic energy modeled as a particle that transmits electromagnetic force in the standard model of matter
- 13. positively charged particles
- 15. the nucleus of the helium atom, priduced as the by-product of a nuclear decay process
- 17. a three-dimensional region of space around a nucleus in which as many as two electrons are likely to be found.