h1234,
it is very difficult to answer your question, becouse you did not explain to us in wich level answers should be,
some basic explanatios,
1)in general: metallic propertis are conected with electronegativity and electronegativity is oposite to electron affinity , some of those properties are concted with radii of an element (electron structure), so try to find some basic chemistry literature ,little bit of thinking and you will come to some fine conclusions