Group-8 elements are inert and possess

Group 8 elements are inert and possess :

1. Low Boiling Points

2. High ionization energies

3. Electronegativities is very low

4. No color, odor

Explanation:

Group 8 elements are also called as Noble Gases. They are unreactive.

They have low boiling points means they remains monoatomic  at room temperature.  Having high ionization energy means that it is very difficult to remove an electron from its valence shell.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

a polar bond is formed when electrons are shared unevenly between atoms