Which one of the following happens, in group 16, as the atomic number increases?

Options

A. Ionic radius (`M^(2-)` ion) decreases
B. ionisation ethanlpy increases
C. Electronegativity decreases
D. Density decreases

Answer

C

Explanation

Atomic and ionic radii
increases down the group 16.
Density increases on moving down the group 16.
Electronegativity decreases down the group 16 . They have higher values of electronegativity as coompared to those of corresponding elements of group 15.
Ionisation energy enthalpy decreases down the group 16 and is less than that of group-15 elements.