Which has least value ?

Which has least covalent radius

Which has least covalent radius

Which has least number of atoms ?

Which has least number of atoms ?

Which material has least value of resistivity.

Fluoride has high hydration energy and iodide has least value. Explain.

A, B, C are three elements with atomic numbers, Z-1, Z " and " Z + 1 respectively. B is an inert gas. Answer the follwing questions. Which of the three has least value of ionization energy?

The one which has least iodine value is