Question

Which group (column) would an element with the following ionization energies be found? Ionization energies are given in kJ/mol. IE1 = 786, IE2 = 1577, IE3 = 3232, IE4 = 4355, IE5 = 16091, IE6 = 19784

Answer 1

the element which corresponds to this ionization energies have is the 4rt group element

for 4rth group element valency is 4 .

the electron configuration of 4rth group = [Ne] ns2 np2

so it looses 4 electrons easily. after loosing 4 electrons its get stable nobel gas configuration .

so it require more energy to remove 5th electron.

observing the above given ionization energies .

first 4 are slightly increase. but coming to 5th there is drastic increase of energy. so it is confirmed the element belongs to 4rth group