Yes they are!
even though they are very soft, reactive and not as widely used as much as transition metals eg. in construction they still have other metallic properties, such as metallic bonding.
Magnesium isn't considered an alkali metal, it is an alkali EARTH metal. That fact is true because of the two valence electrons that the element magnesium contains in its outer energy level...
Not according to the periodic table. Alkali metals are metals in the 1st column of the periodic table:
Lithium, Sodium, Potassium, Rubidium, Caesium, and Francium.
Alkali metals are the first family of the periodic table to the left side. Alkali*ne* Earth metals are the second family of the periodic table to the left. Alkali metals are more volatile (reactive)...