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Curated by: Khan Academy India - English (4 videos)
In this video, we will introduce ourselves to the d block elements, look at their position in the periodic table, their electronic configurations and exceptions to the Aufbau’s principle. We look into the 3d, 4d, 5d and 6d series and ponder whether lanthanum or lutetium should be a part of the d block. Finally we look at some of the characteristics of these “transition elements” and answer the question why zinc, cadmium and mercury are not considered transition metals. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/class-12-chemistry-india/x6a5fb67b43bb54b9:the-d-block-elements?lang=en Timestamps: 0.00 : Introduction to the d block elements 1.17 : Why are these elements called the d block elements ? 5.41 : Exceptional electronic configurations in the d block 7.45 : The 3d, 4d, 5d and 6d series 11.13 : Important characteristics of the d block Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Khan Academy