Across
- 2. Energy change that occurs when a neutral atom gains an electron
- 3. Name of element in groups three to twelve
- 7. The measure of an atom in a chemical bond to attract an electron
- 8. Category of elements that is the smallest on the table and shares the properties of the other two categories
- 9. Name of nonmetal in group seventeen
- 10. Most numerous type of element on the periodic table
Down
- 1. The energy required to remove an electron from an atom
- 4. Inventor of the Periodic Table
- 5. Name of element in group one
- 6. Measured as half the distance between two bonded atoms of the same element