The physical properties of group-16 elements are I. polonium is a metal and is radioactive. II. all these elements exhibit allotropy. III. with increase in atomic number, the melting and boiling points increase down the group. The option with correct set of properties is

Question

The physical properties of group-16 elements are I. polonium is a metal and is radioactive. II. all these elements exhibit allotropy. III. with increase in atomic number, the melting and boiling points increase down the group. The option with correct set of properties is (A) Both I and II (B) Both II and III (C) Both I and III (D) I, II and III

Tardigrade Admin · Accepted Answer

Oxygen and sulphur are non-metals, selenium and tellurium are metalloids, whereas polonium is a radioactive element. It is short lived (half-life

13.8

days).
All these elements exhibit allotropy. The melting and boiling points increase with an increase in atomic number down the group.

Q. The physical properties of group-16 elements are I. polonium is a metal and is radioactive. II. all these elements exhibit allotropy. III. with increase in atomic number, the melting and boiling points increase down the group. The option with correct set of properties is

Both I and II

Both II and III

Both I and III

I, II and III

Oxygen and sulphur are non-metals, selenium and tellurium are metalloids, whereas polonium is a radioactive element. It is short lived (half-life 13.8 days). All these elements exhibit allotropy. The melting and boiling points increase with an increase in atomic number down the group.

Q. The physical properties of group- $16$ elements are
I. polonium is a metal and is radioactive.
II. all these elements exhibit allotropy.
III. with increase in atomic number, the melting and boiling points increase down the group.
The option with correct set of properties is

Oxygen and sulphur are non-metals, selenium and tellurium are metalloids, whereas polonium is a radioactive element. It is short lived (half-life $13.8$ days).
All these elements exhibit allotropy. The melting and boiling points increase with an increase in atomic number down the group.