Week 2 Kelly Nguyen

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