Residual electromagnetic interactions between electrically neutral atoms are responsible for the binding of atoms to form molecules and most of the forces (apart from gravity) that we experience in everyday life. Molecular binding effects result from atoms sharing and/or exchanging electrons. electromagnetic waves and differ only in wavelength.
The rigidity of the floor supporting you, the friction between your feet and the floor that allows you to walk, the pull of a rubber band on your finger, and the feel of the wind in your faces are all due to residual electromagnetic interactions. Forces such as these result from the changes in energy due to repositioning of electrons or atoms as material is deformed by contact with other material.
Electromagnetic interactions are also responsible for electric and magnetic field formation around electric charges and electric currents, and for traveling electromagnetic waves such as light, radio-waves, x-rays, and microwaves. All these phenomena are
In the quantum field theory, any changing electromagnetic fields or electromagnetic waves can be described in terms of photons. When there are many photons involved, the effects are equally correct (and more simply) given by the earlier non-quantum theory, namely Maxwell's equations.
Photons produced in radioactive decays are also called ("gamma" particles, originally called x-rays