The statement that is not correct for periodic classification of elements is:
 

Comprehension given below is followed by a question. Choose the correct option.
In the modern periodic table, elements are arranged In order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz, $\mathrm{s}, \mathrm{p}, \mathrm{d} \mathrm{and} \mathrm{f}$. The modern periodic table consists of $7$ periods and $18$ groups. Each period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods $(1 \mathrm{to} 7)$ have $2, 8, 8, 18, 18, 32$ and $32$ elements respectively. To avoid the periodic table being too long, the two series of $\mathrm{f}$-block elements, called lanthanoids and actinoids are placed at the bottom of the main body of the periodic table.

The element with atomic number $57$ belongs to