Across
- 2. Distance between crests
- 7. Negatively charged ions
- 8. Row of elements on a periodic table
- 11. Property of an electron related to it's spin about an axis
- 13. Quantity of energy that is proportional in magnitude to the frequency it represents
- 15. Low weight, poor conductors, dull appearance
- 17. Hz, SI unit for frequency
- 19. Waves height from zero to crest
- 21. Group of elements with similar chemical properties
Down
- 1. Number of wave cycles to pass a given point per unit of time
- 3. Capable of reacting with a base
- 4. Column of elements on periodic table
- 5. Particle representing a quantum of light
- 6. Elements in group VIIA on the periodic table
- 9. Tendency for an atom to attract shared electrons when bonding
- 10. Molecule with one or more positive or negative electrical charges
- 12. Positively charged ions
- 14. Capable of reacting with an acid
- 16. mixture of metals and nonmetals
- 18. Reduction in effective nuclear charge on electron cloud
- 20. Lustrous appearance, malleable, good conductor