Question

The atomic numbers of elements x y and z are 19,21,25 respectively the no of electrons present in the m shell of these elements follows order

Answer 1

Explanation:

Therefore, the total electrons in K shell is 2, in L shell is 8, in M shell is 18 and so on. Therefore, the electron distribution of X, Y, Z with atomic number 19,21 and 25 respectively. From this electronic distribution the number of electrons of X, Y, Z elements in the M shell are 9, 11, 15 respectively.