What property do x-rays, gamma rays, and visible light share?

The property that x-rays, gamma rays, and visible light share is that they all travel at the same speed in a vacuum. This speed, known as the speed of light, is approximately 299,792 kilometers per second (or about 186,282 miles per second). This characteristic is fundamental to the nature of electromagnetic radiation, which encompasses all these forms of light, despite their differences in frequency and wavelength.

While these forms of radiation do exist on the electromagnetic spectrum, they have different frequencies and wavelengths. X-rays and gamma rays have much higher frequencies and much shorter wavelengths compared to visible light. The concept of charge is not applicable here, as all these types of radiation are neutral and do not possess a charge. Additionally, atomic mass is a property associated with particles that have mass, and since light and electromagnetic waves do not have mass in the traditional sense, this option does not apply.

Thus, the shared characteristic of traveling at the same speed in a vacuum highlights the fundamental nature of electromagnetic radiation as a whole.