Are zero group elements and ${18}^{\mathrm{th}}$ group elements are same?

The similarity of zero group elements and ${18}^{\mathrm{th}}$ group elements are explained in following points:

1. The $\mathrm{VIII}\mathrm{A}$ group elements are called the noble gas family since all the Nobel gases are tabulated in it.
2. All the elements except Xenon are non-reactive. They all have a fulfilling valence shell. Since they have zero valencies so they are called zero group elements.

The above points clearly explains the similarity between zero group elements and ${18}^{\mathrm{th}}$ group elements.