Why x rays have different properties from light even though both originate from orbital transition of electrons in excited atoms?

he difference between X-rays and visible radiation is in the energy of each foton.

Explanation:

Visible light and X-rays are electromagnetism waves with the same origin betray the atomic, but the energy of transioin wings is different,

         E = h (v_f - v₀)

With this equation we see that the energy is proportional to the difference between the atomic levels where the ranscion occurs, the X-rays the transition involves deep levels n = 1 or 2 for which the energy of the emitted photon is very high.

The visible radiation the transition is between levels closer so that the emitted light has a lower frequency and is in the range of the visibly

Consequently, the difference between X-rays and visible radiation is in the energy of each foton.