The element with atomic number 35 belongs to

The correct option is p – Block.

To determine the block to which an element belongs, we write its electronic configuration based on its atomic number ($Z$).
The given atomic number is $Z=35$.

We write the electronic configuration following the Aufbau principle, filling electrons in order of increasing orbital energy:
$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^5$

Alternatively, using noble gas notation, the configuration can be represented as:
$\left[\mathrm{Ar}\right]3d^{10}4s^{2}4p^5$

According to the rules of the periodic table, the block of an element is determined by the subshell into which the last (valence) electron enters. Here, the outer shell is the fourth shell ($n=4$), and the differentiating or last electron enters the $4p$ subshell.

Since the last electron is filled into a $p$-orbital, the element belongs to the p – Block. (Note: This element is Bromine, which is a halogen located in Group 17 and Period 4 of the periodic table).