Across
- 2. the arrangement of electrons in an atom, which is prescribed by three rules—the aufbau principle, the Pauli exclusion principle, and Hund's rule
- 3. A phenomenon in which photoelectrons are emitted from a metal's surface when light of a certain frequency shines on the surface
- 9. the lowest allowable energy state of an atom
- 12. An atomic model in which electrons are treated as waves; also called the wave mechanical model of the atom
- 16. Includes all forms of electromagnetic radiation; the types of radiation differ in their frequencies and wavelengths
- 18. states that each electron occupies the lowest energy orbital available
- 20. Assigned by the quantum mechanical model to indicate the relative sizes and energies of atomic orbitals
- 22. states that a maximum of two electrons can occupy a single atomic orbital but only if the electrons have opposite spins
- 24. consists of an element's symbol, representing the atomic nucleus and inner-level electrons, that is surrounded by dots, representing the atom's valence electrons
- 25. States that it is not possible to know precisely both the velocity and the position of a particle at the same time
Down
- 1. the electrons in an atom's outermost orbitals; determine the chemical properties of an element
- 4. predicts that all moving particles have wave characteristics and relates each particle's wavelength to its frequency, mass, and Plank's constant
- 5. The major energy levels of an atom
- 6. 6.626×10^-34 J/s, where J is the symbol for the joule
- 7. The number assigned to each orbit of an electron
- 8. A set of frequencies of electromagnetic waves given off by atoms of an element; consists of a series of fine lines of individual colors
- 10. states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals
- 11. A three-dimensional region around the nucleus of an atom that describes an electron's probable location
- 13. The energy levels contained within a principal energy level
- 14. A form of energy exhibiting wavelike behavior as it travels through space; can be described by wavelength, frequency, amplitude, and speed
- 15. The height of a wave from the origin to a crest, or from the origin to a trough
- 17. The minimum amount of energy that can be gained or lost by an atom
- 19. The shortest distance between equivalent points on a continuous wave; is usually expressed in meters, centimeters, or nanometers
- 21. The number of waves that pass a given point per second
- 23. A particle of electromagnetic radiation with no mass that carries a quantum of energy