Does electromagnetic radiation travel in waves?

A particle is made up of both wave and particle nature, according to James Clerk Maxwell's explanation of the concept of "wave-particle duality." For instance, light is an electromagnetic wave, which emits wave nature.

The photoelectric effect, which demonstrates that light is composed of particles called photons, has been demonstrated experimentally and/or theoretically by physicists Max Planck and Albert Einstein, demonstrating that light also has a particle nature.

Furthermore, Heisenberg's discovery in the mid-1990s that electrons emit electromagnetic radiation while in motion demonstrated that electrons also have the nature of a wave; all particles emit waves, but the strength of the wave is inversely related to the mass of the particle.

It can be demonstrated that electromagnetic radiation has the ability to propagate in waves.

Yes, electromagnetic radiation travels in waves.