Ionisation energy values of an atom are 495 , 767 , 1250 and 4540 kJ `"mole"^(-1)` the formula of its sulphate is

The five successive ionisation energies energies of an element 'X' are 800, 1427, 2658, 25024 and 32824 "KJ mole"^(-1) respectively . The valency of 'X' is :

The five successive ionisation energies energies of an element 'X' are 800, 1427, 2658, 25024 and 32824 "KJ mole"^(-1) respectively . The valency of 'X' is :

The sucessive ionisation energy values for an element X are given below: a) 1st ionisation energy= 410 kJ mol^(-1) b)2nd ionisation energy= 820 kJ mol^(-1) c) 3rd ionisation energy = 1100 kJ mol^(-1) d) 4th ionisation energy = 1500 kJ mol^(-1) 5th ionisation energy= 3200 kJ mol^(-1) Find out the number of valence electron for the atom, X:

Ionisation potential values of Li, Be and B are respectively in kJ "mol"^(-1)

The I_(1),I_(2),I_(3),I_(4) values of an element "M" are 120 kJ/mole, 600 kJ//"mole", 1000 kJ//"mole" and 8000 kJ//"mole" . Then the formula of its sulphate is