Out of the elements with atomic numbers given below which one would be a halogen

Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?

Which pair of elements of atomic numbers given below will have similar chemical properties?

Which pair of elements of atomic numbers given below will have similar chemical properties

The element 'with atomic number ' 104 was given two names. They are,

In the following table, six elements A, B, C, D, E and F (here letters are not the usual symbols of the elements) of the modern periodic table with their atomic numbers are given. Which of these is a halogen ?

The IUPAC symbol for the element with atomic number 119 would be: