Q. 15. What period are Actinides located in? 0 6 Di) 7 Do 4

The Actinides are a series of elements in the periodic table with atomic numbers from 89 to 103. They are located in the f-block of the periodic table, which is typically displayed as two separate rows at the bottom of the table. These elements are also known as the f-block elements.The Actinides are not located in a specific period like the other elements in the periodic table. Instead, they are a series of elements that span multiple periods. The first element in the Actinide series is actinium (Ac), which has an atomic number of 89 and is located in period 7 of the periodic table. The last element in the Actinide series is lawrencium (Lr), which has an atomic number of 103 and is also located in period 7.So, the correct answer is: Actinides are not located in a specific period, but they span multiple periods in the periodic table.