Across
- 2. The central atom may have an expanded octet if it is in the _____ period or lower in the periodic table.
- 4. What is the ability to attract electrons?
- 8. When an element loses or gains electrons, what does it become?
- 10. What kind of ions are made up of many atoms that stick together as a group and have a charge?
- 13. What kind of bond always happens between a metal and a nonmetal?
- 14. What elements are on the left side of the stair step line?
Down
- 1. What is a complete set of 8 electrons on the outermost shell called?
- 3. What element can never be the central atom?
- 5. What metals use roman numerals when naming?
- 6. What kind of metals are located on the first column of the period table?
- 7. What type of energy is the one required to remove an electron from its atom?
- 9. What type of electrons are on an atoms outermost shell?
- 10. Covalent bonds use ________ while naming.
- 11. Who created the periodic table?
- 12. What kind of bonds allow electrons to be shared?