Unit 1 Summative Assessment

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Across
  1. 5. Absorbed when an electron moves from its ground state to its excited state.
  2. 6. Atomic Mass Number - Atomic Number
  3. 7. Identifies an element. The number of protons.
  4. 9. Energy given off in the form of light by an excited electron.
  5. 12. A shorthand method of writing the location of electrons by sublevels.
  6. 14. Depends on the number of energy levels and the overall charge of the nucleus .
  7. 15. Negatively charged subatomic particles.
  8. 16. The center of an atom. Contains the protons and neutrons.Has an overall positive charge.
  9. 17. If there are two electrons in an orbital, they must have opposite (paired) spins.
  10. 19. Negatively charged Ions.
  11. 20. the most probable location for finding an electron.
  12. 21. Horizontal row on the periodic table.
  13. 22. Neutrally charged subatomic particle.
Down
  1. 1. Atoms of the same element which have a different Mass Number due to a differing number of neutrons.
  2. 2. Positively Charged Ions.
  3. 3. When filling sublevels other than s, electrons are placed in individual orbitals before they are paired up.
  4. 4. The possible locations around an atom where electrons having specific energy values (quantum number) may be found. Divided into sublevels s, p, d, and f.
  5. 8. represent the number of valence electrons.
  6. 10. Vertical Column on the periodic table.
  7. 11. Tendency of an atom to attract electrons to itself when it combines with another element.
  8. 13. Atoms or groups of atoms with a charge.
  9. 17. Positively charged subatomic particle. Contained inside the nucleus.
  10. 18. Principal energy levels are broken down into these...