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Exploring Periodicity and Trends in Element Boiling Points

Dive into the periodic table to discover trends in boiling points of Group 8 elements and predict which Group 9 element has the highest boiling point. Explore atomic radius trends and identify various element classifications like rare earth metals, nonmetals, and metalloids.

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Exploring Periodicity and Trends in Element Boiling Points

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  1. Periodicity Review

  2. Trends • The boiling points of Group 8 are as follows • Fe: 2750 • Ru: 3900 • Os: 5027 Which element of group 9 would you expect to have the highest boiling point: Co, Rh, or Ir?

  3. Answer • Co: 2870 • Rh: 3727 • Ir: 4130 • The trend is to increase down a group

  4. Which has the greater atomic radius • Al or Si • Rb or Cs

  5. Which has the greater atomic radius • Al or Si • Rb or Cs • Remember, atomic radius increases down a group but decreases from left to right across a period

  6. Give an example of a: • Rare earth metal • Transition metal • Metalloid • Chalcogen • Pnictogen • Halogen

  7. Most elements are • Metals • Nonmetals • Metalloids

  8. Most elements are • Metals • Nonmetals • Metalloids

  9. Identify: • The only liquid metal at room temperature • The only liquid nonmetal at room temperature

  10. Identify • The only liquid metal at room temperature • Hg: mercury • The only liquid nonmetal at room temperature • Br: bromine

  11. Al and Si are in the same_________

  12. Al and Si are in the same period.

  13. Name an element which has a reactivity similar to F.

  14. Name an element which has a reactivity similar to F. • Cl, Br, I • They are in the same group

  15. Elements in the same ___ have similar chemical properties because they have the same number of ____ ____.

  16. Elements in the same group have similar chemical properties because they have the same number of valenceelectrons.

  17. Elements in the same ___ have the same number of principle energy levels.

  18. Elements in the same period have the same number of principle energy levels.

  19. A (period/group) is also known as a series.

  20. A (period/group) is also known as a series.

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