Across
- 4. Regions around the nucleus where electrons exist
- 5. The quality or state of being periodic, or occurring at regular intervals.
- 8. the energy required to remove one electron from a neutral atom in the gaseous state
Down
- 1. The distance from the nucleus of an atom to the outermost electron orbital
- 2. elements within the same family have the same properties
- 3. The rows in a periodic table that classify the elements by the number of atomic shells.
- 6. The tendency of an atom or group of atoms to attract electrons.
- 7. The electrons in the outermost energy level of an atom that influence how anelement will react with other substances