Can any gas block radiation? I ask this because I would like to know if the properties of any gas element would chemically react differently with radiation from adding an electrical current.

This picture shows an Earth magnet's field deflecting plasma naturally in a vacuum.

Does any gas extend the electromagnetic shielding properties of a magnetic field?

I am interested if the lack or composition of an atmosphere's chemical properties would inhibit or complement the deflection and absorbing of cosmic radiation when coupled with a magnetic field.

Can contained pure $$\ce{O2 O1 O3}$$ be cycled back with electricity to replenish $$\ce{O3}$$ broken down by radiation while giving the gas an electromagnetic field?

• Ozone doesn't absorb "radiation" in general: it absorbs specific parts of the UV spectrum (which is why a layer of it in the upper atmosphere provides useful protection for us from UV). If we need additional protection from UV we can use plenty of other chemicals (like sunscreen or UV filters on glass). – matt_black Apr 3 '18 at 12:28

First, ozone, $\ce{O3}$, absorbs some "radiation", specifically electromagnetic radiation, e.g. visible light or ultraviolet light (UV), as do many other gases. This absorption is not the same for all wavelength ("colors"), but in the UV region peaks about 250 nm, which is a good thing for us, because plants and animals have not evolved good protection from that light, and the small amount of $\ce{O3}$ in the upper atmosphere is enough to block most of that UV. Sulfur dioxide, $\ce{SO2}$, released in volcanic eruptions, is also able to absorb 250 nm UV. Molecular oxygen, $\ce{O2}$, absorbs "vacuum UV", 10-100 nm, which otherwise would be a problem.