Electrons and The Periodic Table

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Across
  1. 2. This is a negatively charged, subatomic particle found in all atoms.
  2. 5. When an electron loses absorbed energy and falls back to its ground state and emits light.
  3. 11. The most reactive element on The Periodic Table.
  4. 14. The ability of an atom to attract electrons from another element.
  5. 15. The name of the elements in group 7A.
  6. 16. Typically represents the number of valence electrons in an element.
  7. 18. The number of orbitals block F contains.
Down
  1. 1. These elements share the properties of nonmetals and metals.
  2. 3. The greek word for wavelength.
  3. 4. Electrons move and behave like ____
  4. 6. Published the first version of The Periodic Table.
  5. 7. These elements are usually gases, except sulfur, Phosphorus, and Bromine.
  6. 8. Least reactive elements on The Periodic Table.
  7. 9. The modern-day Periodic Table is organized by increasing atomic ___
  8. 10. This principle states that electrons must occupy the lowest energy level first.
  9. 12. Good conductors of energy.
  10. 13. These rays have the shortest wavelength.
  11. 17. This color has the longest wavelength, shortest frequency, lowest energy.