The five successive I.E of an element are 800,2427,3658,25024 and 32824KJ`mol^(-1) respectively. The number of valence electrons present in the atom are

The five successive energies of an element are 800, 2427, 3658, 25024 and 32824 kJ mol^(-1) respectively. The number of valence electron is

The first four I.E. values of an element are 284, 412, 656 and 3210 kJ mol^(-1) . The number of valence electrons in the element are:

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 number of particles presents in 1 mol of nitrogen atom are

The number of particles presents in 1 mol of nitrogen atom are

Atomic number of an element is 16. State The number of valence electrons in the element

An element has 5 valence electrons and three shells what is the atomic number

The atomic numbers of elements X,Y ,and Z are 19,21 , and 23 , respectively. The number of electron present in the M shells of these elements follows the order

Atomic number and mass number of an element M are 25 and 52 respectively. The number of electrons, protons and neutrons in M^(+2) ion are respectively.

Total number of d electrons present in an element with atomic number 78 is :-