The first four ionization enthalpies of an element are `578 kJ mol^(-1), 1817kJ mol^(-1), 2745kJ mol^(-1)`, and `11575 kJ mol^(-1)`. The element is

The first four ionization energies of an element are 738 kJ/mole, 1450 kJ/mol, 7700 kJ/mol and 11000 kJ/mol. Identify the periodic group to which this element belongs.

The first four ionization energies of an element are 738 kJ/mole, 1450 kJ/mol, 7700 kJ/mol and 11000 kJ/mol. Identify the periodic group to which this element belongs.

The first four ionization energies of an element are 738 kJ/mole, 1450 kJ/mol, 7700 kJ/mol and 11000 kJ/mol. Identify the periodic group to which this element belongs.

.The values of first ionization enthalpy of S and Cl are 1000 and 1256kJ mol^(-1) , 1520kJ mol^(-1) . Explain the observed trend.