The document summarizes the development and key features of the periodic table. It traces how early scientists like Newlands and Mendeleev organized the elements and developed periodic trends. The modern periodic table is arranged by atomic number and contains metals, nonmetals, and metalloids organized into blocks and groups. Elements in the same group have similar properties due to their electron configurations, and properties vary periodically according to trends like atomic radius and ionization energy.

1. The Periodic Table and Periodic Law Chemistry Chapter 6

14. Development of the Periodic Table

23. Questions What is a row of elements on the periodic table called? A. octave B. period C. group D. transition

24. Questions What is silicon an example of? A. metal B. non-metal C. inner transition metal D. metalloid

29. Organizing the Elements by Electron Configuration

31. Organizing the Elements by Electron Configuration

32. Organizing the Elements by Electron Configuration

38. Atomic Radius

40. Atomic Radius

45. Ionic Radius

50. Ionization Energy

53. Questions The lowest ionization energy is the ____. A. first B. second C. third D. fourth

54. Questions The ionic radius of a negative ion becomes larger when: A. moving up a group B. moving right to left across period C. moving down a group D. the ion loses electrons

66. Chapter Questions Bromine is a member of the A. noble gases. B. inner transition metals. C. earth metals. D. halogens.

68. THE END

69. Chapter Questions

70. Chapter Questions

71. Chapter Questions

72. Chapter Questions

73. Chapter Questions