NEED ASAP Which best explains how radiation is helpful in the plastics industry? It makes plastics easier to shape. It adds a protective layer to plastic. It decreases the melting point of plastic. It improves the strength and durability of plastic.

It makes plastics easier to shape

Explanation:

got it correct before in the past, hope this helps!!! <3

Rise in charge reduced the size due to rise in attraction between electron and nucleus.

Explanation:

Ion of magnesium is smaller than the atom of magnesium. As the nuclear charge increases, the attraction of electron to the nucleus increases in charged ions form of any element. Due to this increase in charge of magnesium ion,  the size of ion reduces

No. of electrons in Mg = 12

No. of proton in Mg = 12

Where as

No. of electrons in Mg2+ = 12

No. of proton in Mg2+ = 10