The main group elements complete their elctron configuration using s and p electrons in the periodic table. These elements range from the most metallic to the most non-metallic , with intermiediate properties of semi-metals, in between . The elements which occur at the two extremes of the periodic table are highly reactive and therefore , these highly reactive elements do not occur in free state, they usually occur in the combined forms.
A compound (i.e, and oxide of metal) has an element in its lowest oxidation state. Then it will be :

Options

A. highly acidic
B. highly basic
C. neutral
D. half acidic , half basic

Answer

B