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Question Video: Identifying the Area of the Periodic Table That Corresponds to the s Block Science

The periodic table is divided into different blocks. Which color area corresponds to the s block?

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Video Transcript

The periodic table below is divided into different blocks. Which color area corresponds to the s block?

The question tells us that the periodic table is divided into different blocks. These blocks correspond to the sublevel of the outermost electrons so are named s, p, d, and f. The red block is the s block. The blocks can be labeled further so that the elements in the first period of the s block are called 1s. For the elements in this period, their outermost electrons are found in the 1s sublevel. We define a period as a horizontal row of chemical elements in the periodic table.

All elements in a row have the same number of electron shells. The outermost electrons for the elements in period two are found in the 2s sublevel. This pattern continues until period seven. The orange block is known as the p block. The elements found in this block have their outermost electrons in sublevels ranging from 2p to 7p. The blue block is known as the d block. The elements found in this block have their outermost electrons in sublevels ranging from 3d to 6d. Lastly, the green block is known as the f block. The outermost electrons for the lanthanides are in the 4f sublevel, and the actinides, the 5f sublevel.

The question asks, “Which color area corresponds to the s block?” The s block is shown by the red area.

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