Periodicity Unit Review

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Across
  1. 3. Shorthand notation is also known as what?
  2. 4. Who said electrons in the same orbital had to have opposite spins?
  3. 5. Mendleev's periodic table was arranged by what?
  4. 6. What element is a halogen that exists as a liquid at room temp?
  5. 7. Electrons occupy the ________ energy level first before filling the higher energy levels
  6. 8. As the period table moves down, the proton pull _______
  7. 10. The last group on the periodic table, elements with 8 valence electrons
Down
  1. 1. Group 1A is classified as?
  2. 2. Ions are _______ with the nearest noble gas
  3. 9. the d orbital can hold a max of how many electrons?