`I_1` and `I_2` of an element are 700 and 1200 kJmol`""^-` If 1000 kJ `"mol"^(-1)` energy is supplied to the gaseous atomic element and the ionisations occur in succession, find the ratio of monovalent and divalent cations.

I_1 and I_2 of an element are 700 and 1200 kJmol^(-1) If 1000 kJ mol^(-1) energy is supplied to the gaseous atomic element and the ionisations occur in succession, find the ratio of monovalent and divalent cations.

Why is I_2 of an element greater than its first I_1 ?

If the ionisation energy and electron affinity of an element are 275 and 86 Kcals "mol"^(-1) respectively, the electronegativity of that element on Mulliken scale is

N_1 atoms of a radioactive element emit N_2 beta particles per second. Find the decay constant of the element (in s^(-1) )

I_1, I_2, I_3, of an element are 176, 346 and 1850K.cals respectively. The molecular formula of its phosphate is

If I and E are ionisation energy and electron affinity of an element in kJ "mole"^(-1) electronegativity is given as

The ionisation energies of Lithium and Sodium are 520kJ Mol^(-1) and 495kJ Mol^(-1) respectively. The energy required to convert all the atoms present in 7mg of Li vapour and 23 mg of sodium vapour to their respective gaseous cations respectively are

I_1 of an element X is 899 kJ "mole"^(-1) and that of another element Y is 801kJ mole-1. Then X and Y may be

The minimum amount of energy required to remove the most loosely bound electron from an isolated atom in the gaseous state in known as ionisation energy or ionisation enthalpy (IE_1) of the element. The energy required to remove the second electron from the monovalent cation is called second ionisation enthalpy (IE_2) . Similarly, we have third, fourth ..... inonisation enthalpies. The values of ionisation energy depends on a number of factors such as (i) size of the atom (ii) screening effect (iii) nuclear charge (iv) half filled and fully filled orbitals (v) shape of orbital. In a group, the ionisation energy decreases from top to bottom. In a period, the value of ionisation energy increases from left to right. Compared to the second ionisation energy of an atom, the third ionisation

The minimum amount of energy required to remove the most loosely bound electron from an isolated atom in the gaseous state in known as ionisation energy or ionisation enthalpy (IE_1) of the element. The energy required to remove the second electron from the monovalent cation is called second ionisation enthalpy (IE_2) . Similarly, we have third, fourth ..... inonisation enthalpies. The values of ionisation energy depends on a number of factors such as (i) size of the atom (ii) screening effect (iii) nuclear charge (iv) half filled and fully filled orbitals (v) shape of orbital. In a group, the ionisation energy decreases from top to bottom. In a period, the value of ionisation energy increases from left to right. The first ionisation energy of Mg, Al, P and S follows the order: