Here's why:
* Atomic Number: Synthetic elements are created by bombarding existing elements with particles (like neutrons or protons), which increases their atomic number. This process typically results in elements with very high atomic numbers.
* Location: Higher atomic numbers are found at the bottom right corner of the periodic table. These elements belong to the actinide and transactinide series.
Keep in mind that while most synthetic elements are found in this region, there are some exceptions. For instance, technetium (Tc) and promethium (Pm) are also synthetic, but they are located in the middle of the periodic table.