What is the order of catenation of group 14 elements .

Write the electronic configuration of group 2 elements.

Explain the trends of the following in group 13 elements. Ionization enthalpy

What is the number of valence electrons in an element of group 1 and group 18 respectively?

Write a short note on: Halogens or group 17 elements

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

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

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

Explain oxidation state of Group 17 elements

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

Explain oxidation state of Group 16 element