Element with atomic number 33 and mass number 75 is present in

$\text{Z}=33\text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}A}=75$

$\text{As}[\text{Z}=33]=1{\text{s}}^{2}2{\text{s}}^{2}2{\text{p}}^{6}3{\text{s}}^{2}3{\text{p}}^{6}4{\text{s}}^{2}3{\text{d}}^{10}4{\text{p}}^3$

By observing the outer shell electronic configuration the given element belongs to group 15 and period 4.