La (lanthanum) having atomic number 57 is a member of:(a)- s-block element(b)- p-block element(c)- d-block element(d)- f-block element
La (Lanthanum) having atomic number 57 is a member of the (d) - f-block element.
In the periodic table, the f-block elements are located in the two rows at the bottom, known as the "inner transition metals" or "rare earth elements." Lanthanum is part of the lanthanide series, which is a group of 15 elements with atomic numbers ranging from 57 to 71. These elements are placed below the main body of the periodic table to conserve space, and they are often placed separately to avoid making the table too wide.
So, in summary, Lanthanum (La) is a member of the f-block element.
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