No, X-rays cannot be used to make elements radioactive. X-rays themselves are a form of electromagnetic radiation, similar to visible light but with higher energy. They are produced by accelerating electrons to high speeds and then allowing them to collide with a target material.
Radioactive elements, on the other hand, are those that spontaneously undergo radioactive decay, emitting various types of radiation, such as alpha particles, beta particles, or gamma rays. The process of making an element radioactive typically involves changing the number of protons or neutrons in the nucleus of the atom, which cannot be achieved simply by exposing it to X-rays.
There are methods to induce radioactivity in stable elements, but they typically involve bombarding the nucleus with other particles, such as neutrons, protons, or alpha particles, in a process known as nuclear transmutation. This can be achieved in particle accelerators or through nuclear reactions in a nuclear reactor. X-rays, however, do not possess enough energy or the right characteristics to induce nuclear transmutation or make elements radioactive.