How are electronegativity and metallic & non-metallic characters related?

How are electronegative and metallic & non-metallic characters related?

Isn't there a relationship between electronegativity and metallic, non metallic character? Explain the relationship?

Explain about the electronegativity and non-metallic character across the period and down the group.

Don't you think that there is a relationship between ionization energy and metallic non metallic character? Is the element with highest ionization energy metallic or non metallic?