An element X which occurs in the first short period has an outer electronic structure s2p1. What are the formula and acid-base character of its oxides?
The outer electronic configuration = s2p1
Thus, valency = 2 + 1 = 3
Therefore, the formula of the oxide is X2O3.
Since, it is an oxide of III group element, its nature is amphoteric.
Which one of the following process requiring absorption of energy?
Which has highest melting point?
Which of the following metals exhibits more than one oxidation state?
The maximum valency of an element with atomic number is?
The correct order of reactivity of halogens is
The correct order of increasing oxidizing power is
Which element of second period forms most acidic oxide?
Which of the following oxides is most basic?
The pair of amphoteric hydroxides is
The elements X, Y, Z and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element?