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Understanding Periodic Table Trends and Properties

armand avatar
armand
31 diapositives · 442 Views · Jul 26, 2014

This review covers key concepts related to the periodic table, including properties of nonmetals, trends in atomic radius and ionization energy, and the classification of elements. The arrangement of elements based on atomic number and the discovery of periodic laws are discussed. It also highlights the differences between various metal families and their properties, including reactivity and oxidation states. Additionally, it identifies metalloids and examines the significance of electron behavior in forming ions. This comprehensive overview is suitable for students seeking a better understanding of chemical elements and their relationships.

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  1. Periodic Table Review

  2. 1. True or False • Nonmetals are brittle and do not conduct electricity True

  3. 2. What are the trends of radius: Left to Right Decrease Top to bottom Increase

  4. 3. What are the trends of Ionization Energy: Left to Right Increase Top to bottom Decrease

  5. 4. Which element has the larger radius? Ca or Ra Ra (Radium)

  6. 5. What is the oxidation number of the halogen family? -1

  7. 6. What element has the higher ionization energy? Cs or Rn Rn (radon)

  8. 7. Which family can be found as elements in nature? Noble gases

  9. 8. What family contains radioactive elements? Actinoids

  10. 9. What is the name given to the elements that can behave like a metal or a nonmetal depending on the conditions? metalloids

  11. 10. Name the Metalloids Boron, Silicon, Germanium, Arsenic, Antimony and Tellurium

  12. 11. Dobereiner grouped ____ elements together and called them ________ Threes Triads

  13. 12. The modern periodic table is arranged by what property? Atomic Number (new periodic law)

  14. 13. What metallic family follows the transition metals on the periodic table? Post transition metals

  15. 14. What is the most metallic element on the periodic table? Francium

  16. 15. What is the most reactive metallic family on the periodic table? Alkali metals

  17. 16. Which element has the smaller radius? Be or Ba Be (beryllium)

  18. 17. John Newlands discovered that chemical and physical properties repeated every 8 elements. This is called Law of Octaves

  19. 18. What is the most nonmetallic element on the periodic table? Fluorine

  20. 19. What is the energy needed to remove an electron called? Ionization energy

  21. 20. How many valence shell electrons do the alkaline earth metals have? 2

  22. 21. Who made the first periodic table? Mendeleev

  23. 22. What is electronegativity and what is the trend from left to right? Attractiveness - increases

  24. 23. Name the 2 elements that are liquid at room temperature? Mercury (Hg) and Bromine (Br)

  25. 24. What is the oxidation # for the “f” block? +3

  26. 25. Are Ca2+ andNe isoelectronic? No Are B3+ and Li+isoelectronic? Yes

  27. 26. What family has all three states of matter? Halogens

  28. 27. Metals make what kind of ions? Do they gain or lose electrons? Cations – lose electrons

  29. 28. Where are the inner transition metals on the periodic table? 4f Lanthanoids and 5f Actinoids

  30. 29. Which has a larger radius an atom or a cation? An atom

  31. 30. Which has a larger radius an atom or an anion? An anion