Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.
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Chapter 5: The Periodic Table Video
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Transcript of Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.
![Page 1: Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.](https://reader030.fdocuments.in/reader030/viewer/2022020117/56649f4e5503460f94c6f203/html5/thumbnails/1.jpg)
Chapter 5: The Periodic Table
Video
![Page 2: Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.](https://reader030.fdocuments.in/reader030/viewer/2022020117/56649f4e5503460f94c6f203/html5/thumbnails/2.jpg)
Section 1: Organizing the Elements
Video 2
![Page 3: Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.](https://reader030.fdocuments.in/reader030/viewer/2022020117/56649f4e5503460f94c6f203/html5/thumbnails/3.jpg)
Recognizing a Pattern
• Dmitri Mendeleev:– In this periodic table,
Mendeleev arranged elements in rows by increasing atomic mass
– He was able to predict new elements
– Few elements did not fit the pattern
![Page 4: Chapter 5: The Periodic Table Video. Section 1: Organizing the Elements Video 2.](https://reader030.fdocuments.in/reader030/viewer/2022020117/56649f4e5503460f94c6f203/html5/thumbnails/4.jpg)
Changing the Arrangement
• The modern periodic table organizes elements by atomic number. When the elements are arranged in this way, elements that have similar properties appear at regular intervals.
• Elements become less metallic across each period (each row of the table is a period)
• Elements in a group have similar properties (each column of the periodic table is a group)