Across
- 3. the attraction between ions with opposite charges
- 4. a horizontal row of elements in the periodic table
- 5. elements in the same vertical column of the periodic table, also called family
- 7. the way a mineral reflects light from its surface
- 9. a substance that can conduct electric current under some conditions
- 10. the ease and speed with which an element combines, or reacts, with other elements and compounds
Down
- 1. term used to describe material that can be hammered or rolled into flat sheets
- 2. the electrons that are in the highest energy level of an atom and that are involved in chemical bonding
- 6. ion - an ion that is made of more than one atom
- 8. - a term used to describe a material that can be pulled out into a long wire
- 11. a substance made of two or more elements chemically combined in a specific ratio, or proportion
- 12. an atom or group of atoms that has become electrically charged