Crossword Puzzle Review

2. The principle where electrons occupy the lowest energy orbital available.
5. The band of colors produced when white light is separated by wavelength.
7. Element with the electron configuration: 1s^2 2s^1
8. Calculated neutron count for Fluorine-19 atom with the atomic number 9.
10. Element with the electron configuration: 1s^2 2s^2 2p^6 3s^1
12. The number above an atomic symbol in the periodic table.
14. The positively charged subatomic particle found in the nucleus of an atom.
17. Negatively charged subatomic particles.
19. Negatively charged ion.
22. The row is equal to the number of _____.
23. Atoms that absorb energy become...
24. An atom that has gained or lost electrons.

1. A region in an atom where an electron is most likely to be found.
3. The height of a wave from its baseline or origin to its crest
4. The lowest, most stable energy state of an electron.
6. The core of an atom.
8. Maximum electrons of an orbital.
9. The kind of charge an electron emits.
11. Atoms of the same element that have different numbers of neutrons.
13. element whose full configuration ends in 2p4.
15. The total number of protons and neutrons added together in an atom's nucleus.
16. A positively charged ion.
18. Planck's equation
20. The unit of length used to measure visible light wavelengths.
21. The distance between two peaks in a wave.