Atomic and Physical Properties of Group 16 Elements

In Group 16, how many non-metals are there?

Name the allotropes of oxygen.

Write the structure of a chalcogenide dianion.

What is the outer shell electronic configuration of the chalcogens?

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?

There is a large difference between the melting and boiling points of oxygen and sulphur. Explain.

Sulphur exhibits greater tendency for catenation than selenium. Give reasons.

Oxygen shows catenation behaviour less than sulphur. Give reasons.

Sulphur has greater tendency for catenation than oxygen. Give reasons.

How will you account for the following?

The electron gain enthalpy with negative sign is less for oxygen than for sulphur.

How will you account for the following?

The value of electron gain enthalpy with negative sign for sulphur is higher than that of oxygen.

How will you account for the following?

The electron gain enthalpy with negative sign for oxygen ($-141 \mathrm{kJ} {\mathrm{mol}}^{-1}$) is less than that of sulphur ($-200 \mathrm{kJ} {\mathrm{mol}}^{-1}$).

Atomic and ionic radii of Group-$16$ elements increase from top to bottom in the group.

Polonium the most electronegative element of the chalcogen family.

Which of the following is the most electronegative element of the chalcogen family?

Which of the following is the correct order of electronegativity for group $16$ elements?

_____ is the element of group $16$ that has the minimum negative electron gain enthalpy.

What is the electron gain enthalpy of sulphur?

Which of the following element of group $16$ have very low negative electron gain enthalpy?

The following statements concern elements in the periodic table. Which of the following is true?