Across
- 3. a chemical element in the d-block of the periodic table (groups 3-12)
- 5. having a valency of one
- 6. __ radius, the distance from the center of an atom's nucleus to the outermost electron shell
- 7. a group of six chemical elements in Group 2 of the periodic table
- 8. two words, patterns in the properties of chemical elements that emerge as you move across or down the periodic table
- 10. __ levels, the discrete, quantized states where electrons can exist within an atom
- 12. a series of 15 radioactive metallic elements in the periodic table, from atomic numbers 89 (actinium) to 103 (lawrencium)
- 14. a group of highly reactive nonmetallic elements in Group 17 of the periodic table
- 15. group of soft, shiny, highly reactive metallic elements found in Group 1 of the periodic table
- 16. the process where an atom or molecule gains or loses electrons/the energy required for electron loss
Down
- 1. __ electrons, the electrons in the outermost shell of an atom that are involved in chemical bonding
- 2. any in a series of elements of increasing atomic numbers beginning with lanthanum (57) or cerium (58) and ending with lutetium (71)
- 4. a chemical property that measure of how strongly an atom pulls on electrons when it's already bonded to another atom
- 9. an element or species that can form more than one type of ion or chemical bond
- 11. a group of unreactive, gaseous elements in Group 18 of the periodic table
- 13. the tendency of a substance to undergo a chemical reaction
