What are the various factors due to which the ionization enthalpy of the main group elements tends to decrease down a group?

What are the trends in:- ionization enthalpy of group 17 elements ?

What is the order of catenation of group 14 elements .

The first ionization enthlpies of alkali metals decreases down the group because of ________.

Which of the following group of elements easily forms cation?

Why are the first ionization energies of the higher elements of group 16 lower than those of group 15 elements?

Which element from the following pair has highest ionization enthalpy B and TI.

What is the highest oxidation state exhibited by group 17 elements ?

What is the periodic trend observed in the variation of atomic radii down a group?

Elements of Group 16 generally show lower values of first ionization enthalpy compared to the elements of corresponding period of group15. why?

Define ionization energy. Name the factors on which ionisation energy depends? How does it vary down the group and across a period?