Explain the following properties of group 16 elements :
(i) Electronegativity

Explain the following properties of group 16 elements : (iv) Allotropy

Explain the following properties of group 16 elements : (ii) Melting and boiling points

Explain the following properties of group 16 elements : (iii) Melting and character

Explain the trend in the following atomic properties of group 16 elements: electron gain enthalpy

Explain the trend in the following atomic properties of group 16 elements: atomic radii

Explain the following properties of transition elements. (i) Variable oxidation states (ii) Complex formation

The valency of group 16 elements 2 .

Arrange the following hydrides of group 16 elements in order of increasing stability.