5) Select the appropriate options and complete the following paragraph: - (four, seven, s-block, p-block, d-block, f-block, metalloids, transition) On the basis of electronic configuration, elements in the modern periodic table are classified into blocks. Groups 1 and 2 elements are included in and all these elements are metals (except hydrogen). Groups 13 to 18 elements are included in This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in These elements are called elements. Elements shown at the bottom of the periodic table i.e., Lanthanides and Actinides constitute the.
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On the basis of electronic configuration, elements in the modern periodic table are classified into four blocks Groups 1 and 2 elements are included in s-block and all these elements are metals (except hydrogen). Groups 13 to 18 elements are included in p-block This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in d-block These elements are called transition Elements shown at the bottom of the periodic table i.e., Lanthanides and Actinides constitute the. f-block
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